Closing a pull request

Author: yangsu

Readme.md

@@ -131,4 +131,10 @@ Once your squash completes, you can push it to the remote repo. In this case, th
 git push origin pull-request-demo -f
 ```
 
-The pull request will automatically update to reflect the changes.
+### Closing a Pull Request
+
+You can simply click on the "Close" button on the pull request to close it. Optionally, you can delete the branch directly using the "Delete this branch" button.
+
+![Closing a Pull Request](https://f.cloud.github.com/assets/676185/317150/3f849c86-985b-11e2-9de9-9c555fc81515.png)
+
+