Per #1834, added extra space in comment to get docs to build to see i…

…f change to documentation.yml will fix an error

met/docs/conf.py

@@ -32,7 +32,7 @@
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
-# Adding 'sphinx_panels' to use drop-down menus in appendixA.
+# Adding 'sphinx_panels' to use drop-down menus in appendixA. 
 extensions = ['sphinx.ext.autodoc','sphinx.ext.intersphinx','sphinx_panels',]
 
 # Add any paths that contain templates here, relative to this directory.