Add myself as an author 7e09c63

One of my patches was incorporated into Docker, and at that time I didn't know that I was supposed to add myself into this list of contributors.

Commit ID: 7e09c63

And a few other patches are already in the pipeline.

AUTHORS

@@ -69,6 +69,7 @@ Gabriel Monroy <[email protected]>
 Gareth Rushgrove <[email protected]>
 Greg Thornton <[email protected]>
 Guillaume J. Charmes <[email protected]>
+Gurjeet Singh <[email protected]>
 Guruprasad <[email protected]>
 Harley Laue <[email protected]>
 Hector Castro <[email protected]>