Update README, CONTRIBUTING, LICENSE [ci skip]

Author: JuanitoFatas

CONTRIBUTING.md

@@ -0,0 +1,7 @@
+# Contributing
+
+1. [Fork it](https://github.com/jollygoodcode/html-pipeline-linkify_github/fork)
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Commit your changes (`git commit -am "Add some feature"`)
+4. Push to the branch (`git push origin my-new-feature`)
+5. Create a new Pull Request

LICENSE renamed to LICENSE.md

@@ -49,24 +49,25 @@ prints:
   [rails/rails@`67597e1`](https://github.com/rails/rails/commit/67597e1719ec6af7e22964603cc77aa5b085a864)
 ```
 
-## Contributing
-
-1. [Fork it](https://github.com/jollygoodcode/html-pipeline-linkify_github/fork)
-2. Create your feature branch (`git checkout -b my-new-feature`)
-3. Commit your changes (`git commit -am "Add some feature"`)
-4. Push to the branch (`git push origin my-new-feature`)
-5. Create a new Pull Request
-
 ## Notes
 
 This RubyGem requires Ruby 2.0+ because [support for 1.9.3 is officially end](https://www.ruby-lang.org/en/news/2014/01/10/ruby-1-9-3-will-end-on-2015/).
 
-## Credits
+## Contributing
 
-A huge THANK YOU to all our [contributors](https://github.com/jollygoodcode/twemoji/graphs/contributors)! :heart:
+Please see the [CONTRIBUTING.md](/CONTRIBUTING.md) file.
 
-This project is maintained by [Jolly Good Code](http://www.jollygoodcode.com).
+## Credits
+
+A huge THANK YOU to all our [contributors](https://github.com/jollygoodcode/html-pipeline-linkify_github/graphs/contributors)! :heart:
 
 ## License
 
-MIT License. See [LICENSE](LICENSE) for details.
+Please see the [LICENSE.md](/LICENSE.md) file.
+
+## Maintained by Jolly Good Code
+
+[![Jolly Good Code](https://cloud.githubusercontent.com/assets/1000669/9362336/72f9c406-46d2-11e5-94de-5060e83fcf83.jpg)](http://www.jollygoodcode.com)
+
+We specialise in Agile practices and Ruby, and we love contributing to open source.
+[Speak to us](http://www.jollygoodcode.com/#get-in-touch) about your next big idea, or [check out our projects](http://www.jollygoodcode.com/open-source).