v3.1.1

   🐞 Bug Fixes

• Change attribute name from markdown to md in the Plugin class  -  by @impocode (f86ad)
• Improve ruby plugin  -  by @lepture (34f5a)
• Fix render_toc_url method for rendering empty iterable, via #407  -  by @lepture in #407 (ac530)

    View changes on GitHub