Gitdoc silently fails to create commits, if git user configuration is missing

[mtausig]

When you are using GitDoc set to autocommit, but your git configuration is missing the user.name and user.email setting, not commits can be performed.
This is top be expected, my problem is that GitDoc is failing silently in this case. I would expect some form of error or warning message, to help users with debugging the problem at hand.

[lostintangent]

Thanks for reporting this! I'll update the logic to check for these settings and notify the user to configure them 👍