fix broken links and update main.css (#43)

index.html

@@ -7,7 +7,7 @@
   <meta name="description" content="Find all the H5BP projects in one place.">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <link rel="stylesheet" href="assets/normalize.css">
-  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/main.css@2.0.0/dist/main.min.css">
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/main.css@3.0.0/dist/main.min.css">
   <link rel="stylesheet" href="assets/style.css">
   <link rel="canonical" href="https://h5bp.org">
 </head>
@@ -22,9 +22,9 @@ <h1>H5BP</h1>
         </div>
         <h2>A bunch of people creating open source software. Fork a project and get involved!</h2>
         <p class="stats">
-          <a href="https://github.com/h5bp/repositories"><b id="num-repos">View</b> public repos</a>
+          <a href="https://github.com/orgs/h5bp/repositories"><b id="num-repos">View</b> public repos</a>
           <br>
-          <a href="https://github.com/h5bp?tab=members"><b id="num-members">View</b> members</a>
+          <a href="https://github.com/orgs/h5bp/people"><b id="num-members">View</b> members</a>
           <br>
           <b id="num-stargazers"></b> total stars
         </p>