Added branches description into readme.

README.md

@@ -5,16 +5,34 @@ CKEditor 4 - The best browser-based WYSIWYG editor
 
 This repository contains the development version of CKEditor.
 
-**Attention:** The code in this repository should be used locally and for development purposes only.
-We don't recommend distributing it on remote websites because the user experience will be very limited.
-For that purpose, you should build it (see below) or use an official release instead,
-available on the [CKEditor website](http://ckeditor.com).
+**Attention:** The code in this repository should be used locally and for
+development purposes only. We don't recommend distributing it on remote websites
+because the user experience will be very limited. For that purpose, you should
+build it (see below) or use an official release instead, available on the
+[CKEditor website](http://ckeditor.com).
 
 ### Code Installation
 
 There is no special installation procedure to install the development code.
 Simply clone it on any local directory and you're set.
 
+### Available Branches
+
+This repository contains the following branches:
+
+  - **master***: development of the upcoming minor release.
+  - **major***: development of the upcoming major release.
+  - **stable**: latest stable release tag point (non-beta).
+  -	**latest**: latest release tag point (including betas).
+  - **release/A.B.x** (e.g. 4.0.x, 4.1.x): release freeze, tests and tagging.
+    Hotfixing.
+
+(*) Note that both **master** and **major** are under heavy development. Their
+code didn't pass the release testing phase so it may be unstable.
+
+Additionally, all releases will have their relative tags in this form: 4.0,
+4.0.1, etc.
+
 ### Samples
 
 The `samples/` folder contains a good set of examples that can be used
@@ -34,13 +52,14 @@ The development code contains the following main elements:
 
 ### Building a Release
 
-A release optimized version of the development code can be easily created locally.
-The `dev/builder/build.sh` script can be used for that purpose:
+A release optimized version of the development code can be easily created
+locally. The `dev/builder/build.sh` script can be used for that purpose:
 
 	> ./dev/builder/build.sh
 
-A "release ready" working copy of your development code will be built in the new `dev/builder/release/` folder.
-An internet connection is necessary to run the builder, for its first time at least.
+A "release ready" working copy of your development code will be built in the new
+`dev/builder/release/` folder. An internet connection is necessary to run the
+builder, for its first time at least.
 
 ### License