fix to make mathjax work in notebook page

docs/javascripts/mathjax.js

@@ -1,12 +1,11 @@
 window.MathJax = {
   tex: {
-    inlineMath: [["\\(", "\\)"]],
-    displayMath: [["\\[", "\\]"]],
+    inlineMath: [['$', '$'], ["\\(", "\\)"]],
+    displayMath: [['$$', '$$'], ["\\[", "\\]"]],
     processEscapes: true,
     processEnvironments: true
   },
   options: {
-    ignoreHtmlClass: ".*|",
     processHtmlClass: "arithmatex"
   }
 };

mkdocs.yml

@@ -33,10 +33,11 @@ markdown_extensions:
 
 extra_javascript:
   - javascripts/mathjax.js
-  - https://unpkg.com/mathjax@3/es5/tex-mml-chtml.js
+  - https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js
 
 plugins:
-- mkdocs-jupyter
+- mkdocs-jupyter:
+    execute: false
 - mkdocstrings:
     enabled: !ENV [ENABLE_MKDOCSTRINGS, true]
     default_handler: python