Land rapid7#4286, rm documentation

Moved to GitHub.

Author: wvu

documentation/README.md

@@ -0,0 +1,34 @@
+# Metasploit Developer Documentation
+
+*(last updated December 1, 2014)
+
+Metasploit is actively supported by a community of hundreds of
+contributors and thousands of users world-wide. As a result, the
+accompanying documentation moves quite quickly.
+
+The best source of documentation on Metasploit development is
+https://github.com/rapid7/metasploit-framework/wiki. There are many
+treasures there, such as:
+
+  * [Evading Antivirus](https://github.com/rapid7/metasploit-framework/wiki/Evading-Anti-Virus)
+  * [How Payloads Work](https://github.com/rapid7/metasploit-framework/wiki/How-payloads-work)
+  * [How to use Datastore Options](https://github.com/rapid7/metasploit-framework/wiki/How-to-use-datastore-options)
+  * [How to write browser exploits with BES](https://github.com/rapid7/metasploit-framework/wiki/How-to-write-a-browser-exploit-using-BrowserExploitServer)
+  * [How to write a bruteforcer](https://github.com/rapid7/metasploit-framework/wiki/How-to-use-Msf%3A%3AAuxiliary%3A%3AAuthBrute-to-write-a-bruteforcer)
+
+...and many, many more.
+
+## API Documentation
+
+If you are looking for API documentation, you may run `rake yard` to
+generate a navigatable view of the comment documentation used throughout
+Metasploit, or visit https://rapid7.github.io/metasploit-framework/api
+for a recently generated online version.
+
+## Contributing
+
+If you would like to contribute to the documentation effort, please see
+http://yardoc.org/ for details on how to write YARD-compatible comments,
+and send us a [Pull Request](https://github.com/rapid7/metasploit-framework/pulls)
+with your contribution.
+