Allow mathjax to be set globally

exampleSite/config.yaml

@@ -67,6 +67,9 @@ params:
   # This requires your images to be uploaded + hosted on Cloudinary
   # Uncomment and change YOUR_CLOUD_NAME to the Cloud Name in your Cloudinary console
   # cloudinary_cloud_name: "YOUR_CLOUD_NAME"
+  
+  # Whether to add mathjax support on all pages. Alternatively, you can opt-in per page by adding `mathjax: true` in the frontmatter.
+  mathjax: false
 
   # Whether the fade animations on the home page will be enabled
   animate: true

layouts/partials/scripts.html

@@ -54,7 +54,7 @@
 {{ end }}
 
 
-{{ if (.Params.mathjax | default false) }}
+{{ if or (.Params.mathjax | default false) (.Site.Params.mathjax) }}
 
 {{ "<!-- MathJax -->" | safeHTML }}
 <script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/3.2.2/es5/tex-mml-chtml.min.js" integrity="sha384-M5jmNxKC9EVnuqeMwRHvFuYUE8Hhp0TgBruj/GZRkYtiMrCRgH7yvv5KY+Owi7TW" crossorigin="anonymous"></script>