Outdated Ruby GEM, How Do I Share My Changes?

So I have been playing with a Ruby gem for a work project that manipulates and extracts data from PDF documents. I wanted to change a method to parallel another, since the functionality was limited. I am not a Ruby expert by any stretch, just started learning two weeks ago, but this is boilerplate. I checked the the RubyForge page, and tried searching GitHub for the project, to find basically nothing. So the question is, where do I go with a potential patch, 开发者_如何转开发since the RF page has a patch and a bug I looked at, and activity seems to have stopped a few years ago. Do I just fork and start using GitHub like I planned to? Do I contact RubyForge somehow and ask for assistance (I do not think I have the skills yet to own the project), or do I follow up with RubyGems.org? A little research on StackOverflow and other places makes it unclear how I should proceed, and I am an obvious amateur.

This is just an opinion, but if the project is not active anymore, and the license allows for forking, I would go ahead with it. As long as you mention the original source, I wouldn't see any problems with starting your own. What do other people think?