Merge pull request #3475 from sidharthv96/sidv/testDocs

WIP: Fix docs:verify in CI

docs/index.html

@@ -15,7 +15,6 @@
       name="viewport"
       content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"
     />
-    <!-- <link rel="stylesheet" href="//unpkg.com/docsify/lib/themes/vue.css"> -->
     <link rel="stylesheet" href="theme.css" />
     <link
       rel="stylesheet"

src/docs/classDiagram.md

@@ -493,14 +493,14 @@ It is also possible to attach a class to a list of nodes in one statement:
 
 A shorter form of adding a class is to attach the classname to the node using the `:::` operator:
 
-```mmd
+```mermaid-example
 classDiagram
     class Animal:::cssClass
 ```
 
 Or:
 
-```mmd
+```mermaid-example
 classDiagram
     class Animal:::cssClass {
         -int sizeInFeet