Updating README

Author: phalcon

README.md

@@ -1,4 +1,30 @@
 Welcome to Phalcon Internals
 ============================
 
-Phalcon is not a traditional framework, is written as an extension C to provide high performance. The purpose of this document is to explain how it is built internally. If you're interested in helping to improve Phalcon, this is the information you need.
+Phalcon is not a traditional framework, is written as an extension C to provide high performance. The purpose of this document is to explain how it is built internally. If you're interested in helping to improve Phalcon, this is the information you need.
+
+## Information
+
+This is the repository for the Phalcon PHP Internals documentation. Our documentation is
+hosted on Read The Docs (http://www.readthedocs.org) which is automatically
+updated when any changes are made to this repository.
+
+You are welcome to fork this repository and add, correct, enhance the
+documentation yourselves.
+
+The documentation language is reStructuredText (http://sphinx.pocoo.org/rest.html)
+
+## Installing Sphinx
+
+If you have already installed Python, just execute the following command:
+
+    easy_install -U Sphinx
+
+## Compiling the docs
+
+If you have installed Sphinx, execute the following command:
+
+    make html
+
+The _build directory is produced, open it on your browser: http://localhost/docs-internals/_build/html/
+