Update README.rst

ci: Prepare release of version 3.1.1 (#139)

* Update CHANGELOG.rst

* Bump version

* Pin treebeard for Django CMS 3.7 tests

* Update dj30_cms37.txt

Bump version: 3.0.0 → 3.1.0 (#126)

Bumped version to 3.0.0 (#71)

Bumped version to 2.3.0 (#69)

Bumped version to 2.2.0 (#61)

Bumped version to 2.1.0

Bumped version to 2.0.0

Merge pull request #34 from divio/feature/release

Release version 1.9.2

Merge pull request #32 from divio/feature/release

Release 1.9.1