Hello,

Like I said in #78 we need to define a release procedure.
I'm considering the following expected features and changelog (when PR merged)

https://github.com/scls19fr/python-semver/blob/402984a04efbba1c2c3b670fcd9c6869b8429063/CHANGELOG

A possible release procedure (in a release-procedure.md file) could be as defined in #81

Any comment?