Add documentation on shared libraries.

Change-Id: I8970a7b13b2889eda0e784e01cf68cdf14a4b36f
diff --git a/src/tech/index.md b/src/tech/index.md
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@@ -74,6 +74,13 @@
 
 [» Accessory Protocol Information](/tech/accessories/index.html)
 
+## Android Framework Technical Information
+The Android application framework includes a number of features that are
+only available to systems integrators.  This document describes how to define
+and use runtime shared libraries when building a system.
+
+[» Android Framework Technical Information](/tech/framework/index.html)
+
 ## External Storage Technical Information
 Android supports devices with external storage, typically provided by physical
 media or an emulation layer.  This document is designed to help systems