Changelog

[mmccarthy15]

I'd like to make a recommendation/request to add a changelog or version history file to the gem. It's hard to track what changes are happening with each version and if an issue may have been resolved with a version upgrade.

I'm currently struggling with changes between 2.0.0 and 2.0.2 and working through the commits to see what may have changed to prevent the gem from installing.

Thank you in advance, I'd offer to help support it, but I think it probably needs to be done more from the PR merging side.