Update docs to better indicate v3 RC1

_includes/nav-main.html

 <div class="navbar navbar-inverse navbar-fixed-top bs-docs-nav">
   <div class="container">
-    <a href="/" class="navbar-brand">Bootstrap</a>
+    <a href="/" class="navbar-brand">Bootstrap 3 RC1</a>
     <button class="navbar-toggle" type="button" data-toggle="collapse" data-target=".bs-navbar-collapse">
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>

index.html

@@ -6,10 +6,10 @@ title: Bootstrap
 <div class="container">
   <div class="bs-masthead">
 
-    <h1>Bootstrap 3</h1>
+    <h1>Bootstrap 3 RC1</h1>
     <p class="lead">Sleek, intuitive, and powerful mobile-first front-end framework for faster and easier web development.</p>
     <p>
-      <a href="assets/bootstrap.zip" class="btn btn-bs btn-large" onclick="_gaq.push(['_trackEvent', 'Jumbotron actions', 'Download', 'Download 3.0.0 RC1']);">Download Bootstrap 3.0.0 RC1</a>
+      <a href="assets/bootstrap.zip" class="btn btn-bs btn-large" onclick="_gaq.push(['_trackEvent', 'Jumbotron actions', 'Download', 'Download 3.0.0 RC1']);">Download Bootstrap</a>
     </p>
 
     {% include social-buttons.html %}