Update badges

Author: mmistakes

README.md

@@ -1,7 +1,9 @@
 # [Basically Basic Jekyll Theme][1]
 
-[![Gem](https://img.shields.io/gem/v/jekyll-theme-basically-basic.svg?style=flat-square)](https://rubygems.org/gems/jekyll-theme-basically-basic)
-[![license](https://img.shields.io/github/license/mmistakes/jekyll-theme-basically-basic.svg?style=flat-square)](LICENSE.md)
+[![LICENSE](https://img.shields.io/badge/license-MIT-lightgrey.svg)](https://github.com/mmistakes/jekyll-theme-basically-basic/blob/master/LICENSE.md)
+[![Jekyll](https://img.shields.io/badge/jekyll-%3E%3D%203.6-blue.svg)](https://jekyllrb.com/)
+[![Ruby gem](https://img.shields.io/gem/v/jekyll-theme-basically-basic.svg)](https://rubygems.org/gems/jekyll-theme-basically-basic)
+[![Tip Me via PayPal](https://img.shields.io/badge/PayPal-tip%20me-green.svg?logo=paypal)](https://www.paypal.me/mmistakes)
 
 Basically Basic is a [Jekyll theme](https://jekyllrb.com/docs/themes/) meant as 
 a substitute for the default --- [Minima](https://github.com/jekyll/minima).