Starting semver versioning

[j-i-l]

This implements:

• CHANGELOG.md with automated updates
• Workflows to prepare and release new version
• Semver based versioning

[j-i-l]

@alexbovet Could you head over to this project on https://readthedocs.org/dashboard/ and add an automation rule for the versioning?

Simply follow these instructions:
https://docs.readthedocs.io/en/stable/guides/automation-rules.html#adding-a-new-automation-rule

choose SemVer for the Match in point 2 and Git tag for Version type in point 3.

This will allow us to have a version specific documentation.

[alexbovet]

I made a new rule with the "activate version" action. ok?

[j-i-l]

I made a new rule with the "activate version" action. ok?

Great thanks! Let's try.