fixed the version from commit, supports an empty repo or a repo that's been...

fixed the version from commit, supports an empty repo or a repo that's been created with an initial readme. works for local repo too. Set default branch to main, it's what we assume. Also checks if there's changes to the repo and if not then does not update versions. Does not support pulling and merging if there's collaboration or someone changes a remote. That will need to be sorted by the user using git commands themselves.