README: Add quickstart guide

* Quick illustration for the impatient.

README.md

@@ -1,8 +1,7 @@
 Android Open Source Project Docker Build Environment
 ====================================================
 
-The goal of this Docker image is to maintain a minimal build environment for
+Minimal build environment for AOSP with handy automation wrapper scripts.
-AOSP.
 
 Developers can use the Docker image to build directly while running the
 distribution of choice, without having to worry about breaking the AOSP build
@@ -15,6 +14,32 @@ by empowering developers and production builds to use the exact same
 environment.  The hope is that breakages will be caught earlier by the devs.
 
 
+Quickstart
+----------
+
+For the terribly impatient.
+
+1. Make a directory to work and go there.
+2. Export the current directory as the persistent file store for the `aosp`
+   wrapper.
+3. Run a self contained build script, which does:
+    1. Attempts to fetch the `aosp` wrapper if not found locally.
+    2. Runs the `aosp` wrapper with an extra argument for the docker binary and
+       hints to the same script that when run later it's running in the docker
+       container.
+    3. The aosp wrapper then does it's magic which consists of fetching the
+       docker image if not found and forms all the necessary docker run
+       arguments seamlessly.
+    4. The docker container runs the other half the build script which
+       initializes the repo, fetches all source code, and builds.
+    5. In parallel you are expected to be drinking because I save you some time.
+
+
+    mkdir kitkat ; cd kitkat
+    export AOSP_VOL=$PWD
+    curl -O https://raw.githubusercontent.com/kylemanna/docker-aosp/master/tests/build-kitkat.sh
+    bash ./build-kitkat.sh
+
 How it Works
 ------------