Add a git tag for each version

[scho]

Would it be possible to add a git tag for each version so that it's possible to reference a certain version in the Unity package manager?

E.g. the following URL could be used to use a specific version: https://github.com/elmortem/serializereferenceeditor.git#v1.1.0

Otherwise, someone might run into suddenly having breaking changes, even though the package was not updated inside the package manager.

As a workaround, someone could of course always use a commit hash: https://github.com/elmortem/serializereferenceeditor.git#5d4c933a99c525e49a0c0f152f6fc7cadefd5492