diff --git a/404.html b/404.html
index 8046bd7..7173bc6 100644
--- a/404.html
+++ b/404.html
@@ -298,8 +298,8 @@ <h1>Page not found</h1>
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   "identifier": "https://cgross95.github.io/r-for-hpcc/404.html",
   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 25c613d..cc315cd 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -310,7 +310,7 @@ <h1>Contributor Code of Conduct</h1>
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   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index f95fec1..11a3762 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -361,7 +361,7 @@ <h1>Licenses</h1>
   "identifier": "https://cgross95.github.io/r-for-hpcc/LICENSE.html",
   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index f2c1ff1..a8cb733 100644
--- a/aio.html
+++ b/aio.html
@@ -394,7 +394,7 @@ <h3 class="callout-title">Open a file<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Click the button that looks like a page with a plus sign right below
 the file menu and choose R Script.</p>
@@ -476,7 +476,7 @@ <h3 class="callout-title">Challenge<a class="anchor" aria-label="anchor" href="#
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Running <code>top -u k0068027</code> (my username) from the RStudio
 terminal shows the <code>rstudio</code> command in the
@@ -892,7 +892,7 @@ <h3 class="callout-title">Packages for later<a class="anchor" aria-label="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Double checking our library paths</p>
 <div class="codewrapper sourceCode" id="cb17">
@@ -953,7 +953,7 @@ <h3 class="callout-title">Startup and shutdown code<a class="anchor" aria-label=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb21">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2314,7 +2314,7 @@ <h3 class="callout-title">Submitting a multicore job<a class="anchor" aria-label
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p><code>slurm/multi_core.sh</code>:</p>
 <div class="codewrapper sourceCode" id="cb7">
@@ -2396,7 +2396,7 @@ <h3 class="callout-title">Cleaning up the output<a class="anchor" aria-label="an
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p><code>multi_core.sh</code>:</p>
 <div class="codewrapper sourceCode" id="cb9">
@@ -2576,8 +2576,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index d3f6ef3..1e19290 100644
--- a/images.html
+++ b/images.html
@@ -364,8 +364,8 @@ <h3 id="managing-r-env-packages-figure-1">Figure 1</h3>
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   "identifier": "https://cgross95.github.io/r-for-hpcc/images.html",
   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index 9a6ee39..e9e28d6 100644
--- a/index.html
+++ b/index.html
@@ -321,8 +321,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
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   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index eada9f2..d132309 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -340,8 +340,8 @@ <h1>Instructor Notes</h1>
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   "identifier": "https://cgross95.github.io/r-for-hpcc/instructor-notes.html",
   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index 2ccba78..d5a4db5 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -298,8 +298,8 @@ <h1>Page not found</h1>
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   "identifier": "https://cgross95.github.io/r-for-hpcc/instructor/404.html",
   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index 557b0c6..65c6f6b 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -312,7 +312,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://cgross95.github.io/r-for-hpcc/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index fd258a3..1c5db98 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -363,7 +363,7 @@ <h1>Licenses</h1>
   "identifier": "https://cgross95.github.io/r-for-hpcc/instructor/LICENSE.html",
   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index 12bd469..2a40cb3 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -397,7 +397,7 @@ <h3 class="callout-title">Open a file<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Click the button that looks like a page with a plus sign right below
 the file menu and choose R Script.</p>
@@ -479,7 +479,7 @@ <h3 class="callout-title">Challenge<a class="anchor" aria-label="anchor" href="#
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Running <code>top -u k0068027</code> (my username) from the RStudio
 terminal shows the <code>rstudio</code> command in the
@@ -896,7 +896,7 @@ <h3 class="callout-title">Packages for later<a class="anchor" aria-label="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Double checking our library paths</p>
 <div class="codewrapper sourceCode" id="cb17">
@@ -957,7 +957,7 @@ <h3 class="callout-title">Startup and shutdown code<a class="anchor" aria-label=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb21">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2321,7 +2321,7 @@ <h3 class="callout-title">Submitting a multicore job<a class="anchor" aria-label
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p><code>slurm/multi_core.sh</code>:</p>
 <div class="codewrapper sourceCode" id="cb7">
@@ -2403,7 +2403,7 @@ <h3 class="callout-title">Cleaning up the output<a class="anchor" aria-label="an
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p><code>multi_core.sh</code>:</p>
 <div class="codewrapper sourceCode" id="cb9">
@@ -2583,8 +2583,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://cgross95.github.io/r-for-hpcc/instructor/aio.html",
   "identifier": "https://cgross95.github.io/r-for-hpcc/instructor/aio.html",
   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/images.html b/instructor/images.html
index c398ede..1f82d0b 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -366,8 +366,8 @@ <h3 id="managing-r-env-packages-figure-1">Figure 1</h3>
   "url": "https://cgross95.github.io/r-for-hpcc/instructor/images.html",
   "identifier": "https://cgross95.github.io/r-for-hpcc/instructor/images.html",
   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/index.html b/instructor/index.html
index bc3a122..fb02ea6 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -378,8 +378,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
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   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index 531237d..b91d4d5 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -347,8 +347,8 @@ <h1>Instructor Notes</h1>
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   "identifier": "https://cgross95.github.io/r-for-hpcc/instructor/instructor-notes.html",
   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/key-points.html b/instructor/key-points.html
index f52cfdc..87973b1 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -386,8 +386,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
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   "identifier": "https://cgross95.github.io/r-for-hpcc/instructor/key-points.html",
   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/managing-r-env-packages.html b/instructor/managing-r-env-packages.html
index a90bb69..50a3cdd 100644
--- a/instructor/managing-r-env-packages.html
+++ b/instructor/managing-r-env-packages.html
@@ -616,7 +616,7 @@ <h3 class="callout-title">Packages for later<a class="anchor" aria-label="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Double checking our library paths</p>
 <div class="codewrapper sourceCode" id="cb17">
@@ -677,7 +677,7 @@ <h3 class="callout-title">Startup and shutdown code<a class="anchor" aria-label=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb21">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -848,7 +848,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/parallelizing-r-code.html b/instructor/parallelizing-r-code.html
index 69a553a..6064124 100644
--- a/instructor/parallelizing-r-code.html
+++ b/instructor/parallelizing-r-code.html
@@ -795,7 +795,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/profiles.html b/instructor/profiles.html
index a89d538..653023e 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -280,8 +280,8 @@ <h1>Learner Profiles</h1>
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   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/r-command-line.html b/instructor/r-command-line.html
index 6ac8a99..e11aee5 100644
--- a/instructor/r-command-line.html
+++ b/instructor/r-command-line.html
@@ -825,7 +825,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/r-slurm-jobs.html b/instructor/r-slurm-jobs.html
index 68f72bc..21d1366 100644
--- a/instructor/r-slurm-jobs.html
+++ b/instructor/r-slurm-jobs.html
@@ -435,7 +435,7 @@ <h3 class="callout-title">Submitting a multicore job<a class="anchor" aria-label
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p><code>slurm/multi_core.sh</code>:</p>
 <div class="codewrapper sourceCode" id="cb7">
@@ -515,7 +515,7 @@ <h3 class="callout-title">Cleaning up the output<a class="anchor" aria-label="an
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p><code>multi_core.sh</code>:</p>
 <div class="codewrapper sourceCode" id="cb9">
@@ -695,7 +695,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://cgross95.github.io/r-for-hpcc/instructor/r-slurm-jobs.html",
   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/reference.html b/instructor/reference.html
index a3a4fdc..ad468ca 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -387,7 +387,7 @@ <h1>Reference</h1>
   "identifier": "https://cgross95.github.io/r-for-hpcc/instructor/reference.html",
   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/rstudio-ondemand.html b/instructor/rstudio-ondemand.html
index 673530d..563d974 100644
--- a/instructor/rstudio-ondemand.html
+++ b/instructor/rstudio-ondemand.html
@@ -353,7 +353,7 @@ <h3 class="callout-title">Open a file<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Click the button that looks like a page with a plus sign right below
 the file menu and choose R Script.</p>
@@ -431,7 +431,7 @@ <h3 class="callout-title">Challenge<a class="anchor" aria-label="anchor" href="#
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Running <code>top -u k0068027</code> (my username) from the RStudio
 terminal shows the <code>rstudio</code> command in the
@@ -518,7 +518,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://cgross95.github.io/r-for-hpcc/instructor/rstudio-ondemand.html",
   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/key-points.html b/key-points.html
index 826c0d3..c77b8b6 100644
--- a/key-points.html
+++ b/key-points.html
@@ -384,8 +384,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://cgross95.github.io/r-for-hpcc/key-points.html",
   "identifier": "https://cgross95.github.io/r-for-hpcc/key-points.html",
   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/managing-r-env-packages.html b/managing-r-env-packages.html
index f58d2ab..b013d3c 100644
--- a/managing-r-env-packages.html
+++ b/managing-r-env-packages.html
@@ -614,7 +614,7 @@ <h3 class="callout-title">Packages for later<a class="anchor" aria-label="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Double checking our library paths</p>
 <div class="codewrapper sourceCode" id="cb17">
@@ -675,7 +675,7 @@ <h3 class="callout-title">Startup and shutdown code<a class="anchor" aria-label=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb21">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -846,7 +846,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://cgross95.github.io/r-for-hpcc/managing-r-env-packages.html",
   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/parallelizing-r-code.html b/parallelizing-r-code.html
index fcb4076..285c029 100644
--- a/parallelizing-r-code.html
+++ b/parallelizing-r-code.html
@@ -793,7 +793,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://cgross95.github.io/r-for-hpcc/parallelizing-r-code.html",
   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/pkgdown.yml b/pkgdown.yml
index f69dda5..fd892ac 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 3.1.11
 pkgdown: 2.0.9
 pkgdown_sha: ~
 articles: {}
-last_built: 2024-04-23T01:00Z
+last_built: 2024-04-30T01:00Z
 
diff --git a/profiles.html b/profiles.html
index 36f9c61..bc16a2f 100644
--- a/profiles.html
+++ b/profiles.html
@@ -280,8 +280,8 @@ <h1>Learner Profiles</h1>
   "url": "https://cgross95.github.io/r-for-hpcc/profiles.html",
   "identifier": "https://cgross95.github.io/r-for-hpcc/profiles.html",
   "dateCreated": "2023-06-30",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/r-command-line.html b/r-command-line.html
index 11f1d23..8b5f27a 100644
--- a/r-command-line.html
+++ b/r-command-line.html
@@ -823,7 +823,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://cgross95.github.io/r-for-hpcc/r-command-line.html",
   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/r-slurm-jobs.html b/r-slurm-jobs.html
index d2b3085..dcc3b7c 100644
--- a/r-slurm-jobs.html
+++ b/r-slurm-jobs.html
@@ -433,7 +433,7 @@ <h3 class="callout-title">Submitting a multicore job<a class="anchor" aria-label
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p><code>slurm/multi_core.sh</code>:</p>
 <div class="codewrapper sourceCode" id="cb7">
@@ -513,7 +513,7 @@ <h3 class="callout-title">Cleaning up the output<a class="anchor" aria-label="an
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p><code>multi_core.sh</code>:</p>
 <div class="codewrapper sourceCode" id="cb9">
@@ -693,7 +693,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://cgross95.github.io/r-for-hpcc/r-slurm-jobs.html",
   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/reference.html b/reference.html
index f37c468..beebfe5 100644
--- a/reference.html
+++ b/reference.html
@@ -385,7 +385,7 @@ <h1>Reference</h1>
   "identifier": "https://cgross95.github.io/r-for-hpcc/reference.html",
   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/rstudio-ondemand.html b/rstudio-ondemand.html
index 7d78fbb..7925267 100644
--- a/rstudio-ondemand.html
+++ b/rstudio-ondemand.html
@@ -351,7 +351,7 @@ <h3 class="callout-title">Open a file<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Click the button that looks like a page with a plus sign right below
 the file menu and choose R Script.</p>
@@ -429,7 +429,7 @@ <h3 class="callout-title">Challenge<a class="anchor" aria-label="anchor" href="#
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Running <code>top -u k0068027</code> (my username) from the RStudio
 terminal shows the <code>rstudio</code> command in the
@@ -516,7 +516,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://cgross95.github.io/r-for-hpcc/rstudio-ondemand.html",
   "dateCreated": "2023-06-30",
   "dateModified": "2024-03-12",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>