Most developers learn by example. I've looked for resources on using vcs properly but the few that existed weren't very good. A great resource would be a showcase for a collection of great commits. It doesn't exist as far as I know unfortunately.
as davvid says, the git project is an excellent place to start. The git project inherited a lot of its practices from the linux kernel project, but they are different enough to make looking at both interesting.
The archive for the git list is at [1].
The other great thing to look for is a well designed standard, with examples, for how a commit message should look. Most everyone who uses a standard uses The Standard* [2], so I would suggest you do the same.
* Except that many projects don't require the sign-off
