Tagging a release in git

Ok, so I'm a noob to git so doing simple things seems tricky at the mo.
A little help from http://gitready.com/beginner/2009/02/03/tagging.html for tagging a release:
git tag -a appv1.4.89 -m "Tag for the awesome version"
To see what has gone down
git describe --tags git show appv1.4.89
Then to push up to the mothership use either
git push --tags git push origin appv1.4.89