Minor tweaks to landing page. Rearrange some links on documentation navigation.

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MOS_MIGRATED_REVID=102638039
diff --git a/site/index.html b/site/index.html
index 67ad8b7..8b04951 100644
--- a/site/index.html
+++ b/site/index.html
@@ -24,7 +24,7 @@
     <div class="row">
       <div class="col-sm-12">
         <h1>Correct, reproducible, fast builds for everyone</h1>
-        <h2>Build software of any size, quickly and reliably, just like engineers do at Google.</h2>
+        <p class="lead">Build software of any size, quickly and reliably, just as engineers do at Google.</p>
         <p>Bazel is Google's own build tool, now publicly available in <a href="#beta">Beta</a>.
            Bazel has built-in support for building both client and server software, including client
            applications for both Android and iOS platforms. It also provides an extensible framework
@@ -39,14 +39,9 @@
     <div class="row">
       <div class="col-sm-12">
         <h1>Why Bazel?</h1>
-        <h2>Here's what makes Bazel great.</h2>
+        <p class="lead">Here's what makes Bazel great.</p>
       </div>
     </div>
-  </div>
-</div>
-
-<div class="landing-feature-1">
-  <div class="container">
     <div class="row">
       <div class="col-sm-4">
         <h3>Speed</h3>
@@ -71,6 +66,8 @@
            for other languages and platforms.
         </p>
       </div>
+    </div>
+    <div class="row">
       <div class="col-sm-4">
         <h3>Correctness</h3>
         <p>Bazel examines the content of source files in your
@@ -98,7 +95,7 @@
     </div>
   </div>
 </div>
-<div class="landing-feature-2">
+<div class="landing-feature-1">
   <div class="container">
     <div class="row">
       <div class="col-sm-12">
@@ -113,7 +110,7 @@
     </div>
   </div>
 </div>
-<div class="landing-feature-1">
+<div class="landing-feature-2">
   <div class="container">
     <div class="row">
       <div class="col-sm-12">
@@ -138,6 +135,8 @@
            learn about the Bazel command-line tool.
         </p>
       </div>
+    </div>
+    <div class="row">
       <div class="col-sm-12">
         <h3>Learn More</h2>
         <p>Take a look at our <a href="docs/install.html">documentation</a>
@@ -148,7 +147,7 @@
   </div>
 </div>
 
-<div class="landing-feature-2">
+<div class="landing-feature-1">
   <div class="container">
     <div class="row">
       <div class="col-sm-12">