add spellcheck yml

.github/workflows/spellcheck.yml

@@ -1,12 +1,28 @@
-name: Spellcheck Action
-on: push
-
-jobs:
-  build:
-    name: Spellcheck
-    runs-on: ubuntu-latest
-    steps:
-      # The checkout step
-      - uses: actions/checkout@v3
-      - uses: rojopolis/spellcheck-github-actions@0.42.0
-        name: Spellcheck
+matrix:
+    - name: SPCheck
+      aspell:
+        lang: en
+      dictionary:
+        encoding: utf-8
+        wordlists:
+          - docs/spell-check-custom-words.txt
+      pipeline:
+        - pyspelling.filters.context:
+            context_visible_first: true
+            escapes: \\[\\`~]
+            delimiters:
+            # Ignore all code blocks
+            - open: '(?s)^(?P<open> *`{3,}\s*(\w+\s*,?\s*)+.*?)$'
+              close: '^( *`{3,})$'
+        - pyspelling.filters.markdown:
+            markdown_extensions:
+              - pymdownx.superfences:
+        - pyspelling.filters.html:
+            comments: false
+            ignores:
+              - code
+              - pre
+      sources:
+        - '**/*.mdx'
+      default_encoding: utf-8
+