Cleaning up source.android.com files.
This change fixes some formatting artifacts that resulted from the export from
Sites, and also updates links to no longer point to Sites and use the standard
{@docRoot} idiom. Also contains a few content updates, and introduces a page
about branch management.
diff --git a/pdk/docs/porting/index.jd b/pdk/docs/porting/index.jd
index 9d23fbe..76609d2 100644
--- a/pdk/docs/porting/index.jd
+++ b/pdk/docs/porting/index.jd
@@ -21,7 +21,7 @@
<p>If you are new to Android, start with the platform documentation on the following sites:
<ul>
<li><a href="http://developer.android.com">Android Developers site</a>: This site offers high-level platform documentation and architecture concepts.</li>
-<li><a href="http://source.android.com">Android Open Source Project site</a>: This site provides instructions on how to get the source code, establish a development environment, and perform a simple build.</li>
+<li><a href="{@docRoot}">Android Open Source Project site</a>: This site provides instructions on how to get the source code, establish a development environment, and perform a simple build.</li>
</ul>
<p>When you are ready to start customizing the platform or porting to your target hardware, start in this guide with the <a href="build_system.html">Build System overview</a>.</p>