docs(git): tell how to pass HTTPS credentials

[yajo]

Fixes #466

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.75%. Comparing base (66d02da) to head (1718491).
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1782   +/-   ##
=======================================
  Coverage   97.75%   97.75%           
=======================================
  Files          49       49           
  Lines        5068     5068           
=======================================
  Hits         4954     4954           
  Misses        114      114           

Flag	Coverage Δ
unittests	97.75% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.