Create changelog for v0.7.0 (#526)

Add v0.7.0 to the list of previous documentation pages.

Make "publish" job in Actions to need the "build" as finished (#388)

The `publish` job now requires that the `build` job should be finished
before starting. This solves the issue of the `publish` job not finding
the uploaded artifact. Update the versions of the `upload-artifacts` and
`download-artifacts` to v3 in `pypi.yml`.

Add changelog for v0.5.1 (#347)

Add links to new versions in README.md and doc/versions.rst.

Update changelog for Harmonica v0.5.0 (#338)

Update doc/changelog.rst with latest changes. Add links to new version docs
in README.md and doc/versions.rst.

Add changelog for v0.4.0 (#290)

Add changelog for v0.4.0 and add link to the documentation in the README.rst.

Add changelog for v0.3.3 (#272)

Add changelog for version v0.3.3 and link to docs in README.rst.

Fix typo on changelog (#267)

Fix a typo on RST markup in changelog.

Add changelog for v0.3.1 (#263)

Add changelog for v0.3.1 and link to the new version on README.md

Add changelog for v0.3.0 (#259)

Add changelog for v0.3.0 and link to the new version on README.md

Add changelog for v0.2.1 (#226)