Add changelog to help with versioning

[montehurd]

Once this PR is merged, please create and push the v1.0.0 tag to mark the new release, using the following commands locally:

git fetch origin
git checkout main
git pull origin main
git tag -a v1.0.0 -m "Release version 1.0.0"
git push origin v1.0.0

[montehurd]

I don't have a strong opinion about whether we should be starting with 1.0.0 or something else 🤷

[soulgalore]

Thank you @montehurd ! I have pushed the tag and will change so both servers run the new tag today.