bump MathJax again

Author: naoyak

knowledge_repo/app/templates/markdown-presentation.html

@@ -35,7 +35,7 @@
   });
 </script>
 <script type="text/javascript"
-  src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js">
+  src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.8/MathJax.js">
 </script>
 <script>
   $(".btn-presentation").addClass("btn-active");

knowledge_repo/app/templates/markdown-rendered.html

@@ -108,7 +108,7 @@ <h2> {{ comments | length }} Comments </h2>
   });
 </script>
 <script type="text/javascript"
-  src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js">
+  src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.8/MathJax.js">
 </script>
 
 <script>

knowledge_repo/app/templates/post_editor_base.html

@@ -560,7 +560,7 @@ <h2> {{ comments | length }} Comments </h2>
   });
 </script>
 <script type="text/javascript"
-  src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js">
+  src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.8/MathJax.js">
 </script>
 
 {% endblock %}