Tip: install git-remote-codecommit if not using Cloud9

[tim-pugh]

Just a small suggestion: I think users may appreciate a tip being added to install git-remote-codecommit ( https://github.com/aws/git-remote-codecommit ) on the following page if they aren't using cloud9 and working on a local machine: https://cicd.serverlessworkshops.io/buildpipe/credhelper.html

I do know it was mentioned on a page linked on that page ( https://docs.aws.amazon.com/codecommit/latest/userguide/auth-and-access-control.html ) but I think it may help get users following along quicker.

That tool really made things a breeze:

pip install git-remote-codecommit

[brianz]

Thank you for this suggestion @tim-pugh ...I'll get this added in to the instructions so it's clear for those without the codecommit helper already installed.