Merge pull request #68 from paigebernier/patch-1

Updated README to include Contributing paragraph

README.md

@@ -187,5 +187,9 @@ The provided daemon.rb file allows newrelic_aws to run as a daemon.
 ## For support
 Plugin support and troubleshooting assistance can be obtained by visiting [support.newrelic.com](https://support.newrelic.com)
 
+## Contributing
+
+You are welcome to send pull requests to us - however, by doing so you agree that you are granting New Relic a non-exclusive, non-revokable, no-cost license to use the code, algorithms, patents, and ideas in that code in our products if we so choose. You also agree the code is provided as-is and you provide no warranties as to its fitness or correctness for any purpose.
+
 ## Credits
 The New Relic AWS plugin was originally authored by [Sean Porter](https://github.com/portertech) and the team at [Heavy Water Operations](http://hw-ops.com/). Subsequent updates and support are provided by [New Relic](http://newrelic.com/platform).