update

Author: AaronCIH

index.html

@@ -72,7 +72,9 @@
   <script type="text/javascript" src="https://code.jquery.com/jquery-migrate-1.2.1.min.js"></script>
   <script src="https://unpkg.com/interactjs/dist/interact.min.js"></script>
   <script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
-  <script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
+  <script id="MathJax-script" async
+          src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js">
+  </script>
 
   <link href="https://fonts.googleapis.com/css?family=Google+Sans|Noto+Sans|Castoro"
         rel="stylesheet">