Add ProGit in Afrikaans

[jnavila]

The translation of ProGit in Afrikaans has started.

[dscho]

Hmm. Is it possible that this would introduce broken links?

[dscho]

Hmm. Is it possible that this would introduce broken links?

Concretely:

• https://git-scm.com/book/af/v2/Customizing-Git-'n-Voorbeeld-van-'n-Git-Afgedwonge-Beleid-An-Example-Git-Enforced-Policy.html
• https://git-scm.com/book/af/v2/Distributed-Git-Bydrae-tot-'n-Projek-Contributing-to-a-Project.html
• https://git-scm.com/book/af/v2/Distributed-Git-Die-Beheer-van-'n-Projek-Maintaining-a-Project.html
• https://git-scm.com/book/af/v2/Git-Basics-Verkry-'n-Git-bewaarplek-repository.html
• https://git-scm.com/book/af/v2/Git-Branching-Takke-in-'n-Neutedop-Branches-in-a-Nutshell.html
• https://git-scm.com/book/af/v2/Git-on-the-Server-Git-op-'n-Bediener-kry-Getting-Git-on-a-Server.html
• https://git-scm.com/book/af/v2/GitHub-Bydra-tot-'n-projek.html
• https://git-scm.com/book/af/v2/GitHub-Die-Bestuur-van-'n-Organisasie-Managing-an-Organization.html
• https://git-scm.com/book/af/v2/GitHub-Die-Instandhouding-van-'n-Projek-Maintaining-a-Project.html

For the record, at time of writing https://git-scm.com/book/af/v2/Aan-die-slag-Oor-Weergawebeheer is not a broken link (it was deployed as part of the workflow run that updated the book/af/ files in this PR).

[jnavila]

I'm going to make a review of the files in the original repository