`man 1 git`: Invalid link to online documentation

In `man 1 git`, the Description section outlines an address to pre-generated documentation [0]. That link returns a 404 error. Playing around, I found the repository at [1] and found that it hasn't been updated since August 2015. Given that 2.8.3 is more recent than that, it seems like this is something that should be updated (if the pre-generated docs still exist somewhere) or removed altogether.

Also worth considering is Google Code was shut down earlier this year. While archives exist, it can't be relied upon for future use. The closest approximation I could find that was up to date is [2], though [3] is a repository that's even fresher than 2.8.3.

Since I'm not familiar with Git development I figured it was wiser to let you know instead of making a decision on what to do and patching.

I know this is minor but I figured it was overlooked. Thanks for reading.

0: http://git-htmldocs.googlecode.com/git/git.html 1: https://code.google.com/archive/p/git-htmldocs/ 2: https://git-scm.com/docs 3: https://github.com/gitster/git-htmldocs