[NaCl Docs] Add devcyle/building.rst

native_client_sdk/src/doc/overview.rst

 .. _overview:
 
 ##################
 Technical Overview
 ##################
 
 .. contents::
   :local:
   :backlinks: none
   :depth: 2
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 For most applications, the PNaCl toolchain is recommended. The **nacl-gcc**
 toolchain should only be used if the application will not be available on the
 open web.
 
 .. _link_nacl_in_web_apps:
 
 Native Client in a web application
 ==================================
 
+.. _application_files:
+
 A Native Client application consists of a set of files:
 
 * **HTML web page**, **CSS**, and **JavaScript** files, as in any modern web
   application. The JavaScript is also responsible for communicating with the
   NaCl module.
 * The **pexe** (portable NaCl module). This module uses the :ref:`Pepper
   <link_pepper>` API, which provides the bridge to JavaScript and
   browser resources.
 * A **manifest** file that specifies the **pexe** to load with some loading
   options. This manifest file is embedded into the HTML page through an
@@ skipping 42 matching lines @@
 APIs to help developers make adjustments to API changes and take advantage of
 new features.
 
 Where to go next
 ================
 
 The :doc:`quick start <quick-start>` document provides links to downloads and
 documentation that should help you get started with developing and distributing
 NaCl applications.