meta-google: restructured the README per norms

Restructure the README per yocto layer norms.

Change-Id: I2643e041bb9ea70fec08012bf369ab97e0035fa5
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/README.md b/README.md
index b8d74d7..21340f3 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,52 @@
-# meta-google layer
+This README file contains information on the contents of the meta-google layer.
 
-## Purpose
+Please see the corresponding sections below for details.
+
+
+Dependencies
+============
+
+This layer depends on:
+
+  URI: https://github.com/openbmc/meta-phosphor
+  branch: master
+
+Patches
+=======
+
+Please submit any patches against the meta-google layer to the OpenBMC gerrit https://gerrit.openbmc-project.xyz/
+
+Layer maintainer: Patrick Venture <venture@google.com>
+
+When sending patches, following [OpenBMC guidelines](https://github.com/openbmc/docs/blob/master/CONTRIBUTING.md).
+
+Table of Contents
+=================
+
+  I. Adding the filesystems layer to your build
+ II. Purpose
+III. Customizations
+
+
+I. Adding the meta-google layer to your build
+=================================================
+
+In order to use this layer, you need to make the build system aware of
+it.
+
+Assuming the meta-google layer exists at the top-level of your
+yocto build tree, you can add it to the build system by adding the
+location of the meta-google layer to bblayers.conf, along with any
+other layers needed. e.g.:
+
+  BBLAYERS ?= " \
+    /path/to/yocto/meta-phosphor \
+    /path/to/yocto/meta-google \
+    "
+
+
+II.  Purpose
+============
 
 Including this layer adds the following packages to your `obmc-phosphor-image`:
 
@@ -8,6 +54,6 @@
 * [phosphor-ipmi-blobs](https://github.com/openbmc/phosphor-ipmi-blobs): OEM IPMI Blobs Handler for providing the framework for specific blob handlers.
 * [phosphor-ipmi-ethstats](https://github.com/openbmc/phosphor-ipmi-ethstats): OEM IPMI Handler for reporting ethernet device statistics from the BMCs ethernet devices.
 
-## Customizations
+III. Customizations
 
 Presently, this layer also enables the Google Iana for registering `phosphor-ipmi-ethstats` in addition to the OpenBMC one.