MacDown - Markdown editor for mac. Really nice clean interface with slick preview as you type.
Badges for readme files - Git-badges
More Badges for readme files - Badges4
Medium Articles links - GitHub Medium
Quotes to use in readme files - readme_quotes
Dynamic Stack Overflow Stats for readme - github-readme-stackoverflow
Dynamic Stats of your github - github-readme-stats
wakaTime weekly dev stats - wakatime
Having a cool readme is now all the rage.
Awesome Collection of readme tools - repo of readme tools -