league/commonmark 1.6.0 Released!

I'm excited to share that version 1.6.0 of league/commonmark has been released! This will be the last minor release of the 1.x branch - all efforts will now be focused on wrapping up development of 2.0.0!

Please see https://commonmark.thephpleague.com/1.6/upgrading/ for important information about this release and the upcoming 2.0.0 version.