working with header animations - marked/highlightjs fixes

client/js/components/Header.js

@@ -1,10 +1,16 @@
 import React from 'react';
+import {bubble} from '../../assets/js/bubble';
 
 export default class Header extends React.Component{
+  componentDidMount(){
+    bubble();
+  }
 
   render(){
     return(
-      <header class="Header" />
+      <header id="header" class="Header">
+        <canvas id="canvas" width="854" height="709"></canvas>
+      </header>
     )
   }
 }