finish up second pass through docs nav, headings, organization, naming, etc (another run through at #9710)

getting-started.html

@@ -15,7 +15,7 @@ base_url: "../"
     </div>
     <p class="lead">There are a few easy ways to quickly get started with Bootstrap, each one appealing to a different skill level and use case. Read through to see what suits your particular needs.</p>
 
-    <h3>Download latest full source</h3>
+    <h3 id="download-source">Download latest full source</h3>
     <p>Until Bootstrap 3.0.0 is finalized, download the latest full source code (includes compiled and minified versions of our CSS and JavaScript under the <code>dist/</code> directory).</p>
     <p><a class="btn btn-lg btn-primary" href="{{ site.download }}" onclick="_gaq.push(['_trackEvent', 'Getting started', 'Download', 'Download source']);">Download latest Bootstrap 3</a></p>
     <!--
@@ -24,7 +24,7 @@ base_url: "../"
     <p><a class="btn btn-lg btn-primary" href="{{ site.download_dist }}" onclick="_gaq.push(['_trackEvent', 'Getting started', 'Download', 'Download compiled']);">Download Bootstrap</a></p>
     -->
 
-    <h3 id="download-options">More download options</h3>
+    <h3 id="download-additional">Additional downloads</h3>
     <div class="bs-docs-dl-options">
       <h4>
         <a href="{{ site.download }}" onclick="_gaq.push(['_trackEvent', 'Getting started', 'Download', 'Download source']);">Download latest source code</a>
@@ -41,7 +41,7 @@ base_url: "../"
       {% highlight bash %}$ bower install bootstrap{% endhighlight %}
     </div>
 
-    <h3 id="download-cdn">Use the Bootstrap CDN</h3>
+    <h3 id="download-cdn">Bootstrap CDN</h3>
     <p>The folks over at <a href="https://www.netdna.com/">NetDNA</a> have graciously provided CDN support for Bootstrap's CSS and JavaScript. To use, swap your local instances for the <a href="http://www.bootstrapcdn.com/">Bootstrap CDN</a> links listed below.</p>
 {% highlight html linenos %}
 <!-- Latest compiled and minified CSS -->