Add a message to warn that it's a clone of the official repositoy

README.md

@@ -1,22 +1,7 @@
 # Propel #
 
-Propel is an open-source Object-Relational Mapping (ORM) for PHP5.
 
-[![Build Status](https://secure.travis-ci.org/propelorm/Propel.png?branch=master)](http://travis-ci.org/propelorm/Propel)
-
-## A quick tour of the features ##
-
-Propel has some nice features you should know about:
-
- - It's a fast and easy way to manage you database;
- - It provides command line tools for generating code (well documented with an IDE-friendly syntax);
- - It's very flexible: you can simply extend Propel;
- - It uses PDO (PHP Data Objects) so it allows your to use the RDBMS you want (MySQL, SQLite, PostgreSQL, Oracle and MSSQL are supported);
- - Propel is an open-source project which is [well documented](http://propelorm.org/documentation/).
-
-## Installation ##
-
-Read the [Propel documentation](http://www.propelorm.org/).
+**This is a fork of the outdated and unmaintained Object-Relational Mapping (ORM) [Propel 1.*](https://github.com/propelorm/Propel).**
 
 
 ## License ##