docs: Add reference on app packaging

docs/README.md

@@ -2,6 +2,7 @@
 
 * [Quick start](tutorial/quick-start.md)
 * [Application distribution](tutorial/application-distribution.md)
+* [Application packaging](tutorial/application-packaging.md)
 * [Using native node modules](tutorial/using-native-node-modules.md)
 * [Debugging browser process](tutorial/debugging-browser-process.md)
 * [Using Selenium and WebDriver](tutorial/using-selenium-and-webdriver.md)

docs/tutorial/application-distribution.md

@@ -27,7 +27,19 @@ Then execute `Atom.app` (or `atom` on Linux, and `atom.exe` on Windows), and
 atom-shell will start as your app. The `atom-shell` directory would then be
 your distribution that should be delivered to final users.
 
-## Build with grunt
+## Packaging your app into a file
+
+Apart from shipping your app by copying all its sources files, you can also
+package your app into [asar](https://github.com/atom/asar) archive to avoid
+exposing your app's source code to users.
+
+To use the `asar` archive to replace the `app` folder, you need to rename the
+archive to `app.asar`, and put it under atom-shell's resources directory,
+atom-shell will then try read the archive and start from it. 
+
+More details can be found in [Application packaging](application-packaging.md).
+
+## Building with grunt
 
 If you build your application with `grunt` there is a grunt task that can
 download atom-shell for your current platform automatically:

docs/tutorial/application-packaging.md

@@ -0,0 +1 @@
+# Application packaging