Create Git tag for each version bump

[EwoutH]

Currently this repository doesn't have any tags. Too keep track of changes and have fixed milestones, it could help to create tags in Git. For example, when a version bump like https://github.com/KoboldAI/KoboldAI-Client/commit/661a2d2727109a21b2634b867439a8c0a9dc53d3 is done, a Git tag with the corresponding version could also be created. See Git Basics - Tagging for more information.

Optionally, releases on GitHub could also be created. A GitHub Release can be created from a existing tag (so tagging first), or a tag can be created while making the release via GitHub. See Releasing projects on GitHub.