Update URLs

Author: Madison Steiner

CONTRIBUTING.md

@@ -1,5 +1,5 @@
 # How to Contribute
 
 This project is part of Deis. You can find the latest contribution
-guidelines [at the Deis project](https://github.com/deis/deis/blob/master/CONTRIBUTING.md).
+guidelines [at the Deis project](https://github.com/deisthree/deis/blob/master/CONTRIBUTING.md).
 

MAINTAINERS.md

@@ -1,4 +1,4 @@
 # Deis Maintainers
 
 This project is part of Deis. The official maintainers documentation is
-located [in the main project](https://github.com/deis/deis/blob/master/MAINTAINERS.md).
+located [in the main project](https://github.com/deisthree/deis/blob/master/MAINTAINERS.md).