DOC: Swap WriteANewExample / ContributeWithGit order
DOC: Swap WriteANewExample / ContributeWithGit order

First steps are to get the Git environment set up.

Change-Id: Ided0c05fc0736803586a21ff6d04f75e5067d587

InsightSoftwareConsortium/ITKExamples,InsightSoftwareConsortium/ITKExamples,InsightSoftwareConsortium/ITKExamples,InsightSoftwareConsortium/ITKExamples,InsightSoftwareConsortium/ITKExamples