update instructions around CLA

README.md

@@ -182,8 +182,18 @@ Training Videos
 
 https://appcelerator.webex.com/appcelerator/lsr.php?AT=pb&SP=EC&rID=63953422&rKey=6202ab1eb2cfb372
 
+Contributing
+-------------
+
+Titanium is an open source project.  Titanium wouldn't be where it is now without contributions by the community. Please consider forking this repo to improve, enhance or fix issues. If you feel like the community will benefit from your fork, please open a pull request. 
+
+To protect the interests of the Titanium contributors, Appcelerator, customers and end users we require contributors to sign a Contributors License Agreement (CLA) before we pull the changes into the main repository. Our CLA is simple and straightforward - it requires that the contributions you make to any Appcelerator open source project are properly licensed and that you have the legal authority to make those changes. This helps us significantly reduce future legal risk for everyone involved. It is easy, helps everyone, takes only a few minutes, and only needs to be completed once. 
+
+[You can digitally sign the CLA](http://bit.ly/app_cla) online. Please indicate your email address in your first pull request so that we can make sure that will locate your CLA.  Once you've submitted it, you no longer need to send one for subsequent submissions.
+
+
 Legal
 ------
 
-Titanium Mobile BlackBerry is developed by Appcelerator and the community and is Copyright (c) 2012 by Appcelerator, Inc. All Rights Reserved.
+Titanium Mobile BlackBerry is developed by Appcelerator and the community and is Copyright (c) 2012-2013 by Appcelerator, Inc. All Rights Reserved.
 Titanium Mobile BlackBerry is made available under the Apache Public License, version 2.  See the [LICENSE](https://github.com/appcelerator/titanium_mobile_blackberry/blob/master/LICENSE) file for more information.