fix myst-parser warning blocking docs ci (#7967)

Author: awaelchli

.gitignore

@@ -17,6 +17,7 @@ docs/source/api
 docs/source/*.md
 docs/source/generated
 docs/source/*/generated
+docs/source/notebooks
 
 # Byte-compiled / optimized / DLL files
 __pycache__/

docs/source/conf.py

@@ -122,6 +122,10 @@ def _transform_changelog(path_in: str, path_out: str) -> None:
 nbsphinx_allow_errors = True
 nbsphinx_requirejs_path = ''
 
+# myst-parser, forcing to parse all html pages with mathjax
+# https://github.com/executablebooks/MyST-Parser/issues/394
+myst_update_mathjax = False
+
 # The suffix(es) of source filenames.
 # You can specify multiple suffix as a list of string:
 #