Everyday: a bit more examples.

Talk about the following as well:

* git fetch --tags
* Use of "git push" as a one-man distributed development vehicle.
* Show example of remotes file for pulling and pushing.
* Annotate git-shell setup.
* Using Carl's update hook in a CVS-style shared repository.

Signed-off-by: Junio C Hamano <junkio@cox.net>