adding in Blog link to navigation

Author: johnathanstewartmlb

components/navigation/navigation.jsx

@@ -26,14 +26,18 @@ let Sections = [
   {
     title: 'Donate',
     url: '//opencollective.com/webpack'
+  },
+  {
+    title: 'Blog',
+    url: '//medium.com/webpack'
   }
 ];
 
 // TODO: Move back to using state once we can handle algolia on our own
 export default class Navigation extends React.Component {
   render() {
     let { pageUrl = '' } = this.props;
-    
+
     return (
       <header className="navigation">
         <Container className="navigation__inner">