Update repo links

[hugovk]

Changes proposed in this pull request:

• Repo now at https://github.com/python-humanize/humanize
• Also using main as the default branch

[codecov-commenter]

Codecov Report

Merging #2 (4c3543b) into main (0d1aae6) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main       #2   +/-   ##
=======================================
  Coverage   99.68%   99.68%           
=======================================
  Files           9        9           
  Lines         635      635           
=======================================
  Hits          633      633           
  Misses          2        2           

Flag	Coverage Δ
GHA_Ubuntu	98.42% <ø> (ø)
GHA_Windows	98.11% <ø> (ø)
GHA_macOS	98.42% <ø> (ø)

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