Remove additional arguments to github_changelog_generator?

[cball]

running with no arguments produces this (which breaks out issues/enhancements/closed PRs):

[alvincrespo]

This looks great! I really like the Enhancements and Fixed Bugs issues being reported. What I think is a bit confusing is the "Merged Pull Requests" section, which I think should be reflected inline with the issue:

Installing addon gives missing dependency  errory for getowner-polyfill [Issue #79] [PR #81]

That might make more sense, but not sure if thats possible with this gem.

[cball]

👍I believe we can disable that via arguments. I'll check when I get a chance.