Add ssh examples for git and mercurial

[pokoli]

No description provided.

[codecov-io]

Current coverage is 99.66%

Merging #702 into master will increase coverage by -0.32%

1. File ...ookiecutter/utils.py (not in diff) was modified. more
   • Misses +2
   • Partials 0
   • Hits -2

@@           master       #702   diff @@
========================================
  Files          13         13          
  Lines         583        583          
  Methods         0          0          
  Messages        0          0          
  Branches        0          0          
========================================
- Hits          583        581     -2   
- Misses          0          2     +2   
  Partials        0          0          

Powered by Codecov. Last updated by 32e54ef...3e3350e

[audreyfeldroy]

Thanks @pokoli. We really appreciate documentation pull requests like this 💛

[hackebrot]

What @audreyr said! 👍

[michaeljoseph]

@pokoli, thanks for contributing docs! ❤️
However, I think these examples would work better under the Works with private repos section though?
Perhaps you could add another paragraph explaining that we support git and ssh protocols in addition to http(s)?