Git push doesn't specify branch

[liamfiddler]

Please check the below screenshot
http://prntscr.com/lw0qek

Originally posted by @Arjunladybird in #1 (comment)

[liamfiddler]

The screenshot shows what happens when you run the script but haven't configured Git with a push default.

We can probably avoid the message by specifying which branch we're trying to push in the script.