README: Add RubyGem badge

cvrebert · cvrebert · commit 6cac9ad6dd34 · 2015-09-02T14:23:30.000-07:00
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-# Bootstrap Ruby Gem [![Build Status](https://travis-ci.org/twbs/bootstrap-rubygem.svg?branch=master)](https://travis-ci.org/twbs/bootstrap-rubygem)
+# Bootstrap Ruby Gem [![Build Status](https://travis-ci.org/twbs/bootstrap-rubygem.svg?branch=master)](https://travis-ci.org/twbs/bootstrap-rubygem) [![Gem](https://img.shields.io/gem/v/bootstrap.svg)](https://rubygems.org/gems/bootstrap)
 
 This is the future home of the Bootstrap v4 ruby gem for Ruby on Rails (Sprockets) and Compass.
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# Bootstrap Ruby Gem [![Build Status](https://travis-ci.org/twbs/bootstrap-rubygem.svg?branch=master)](https://travis-ci.org/twbs/bootstrap-rubygem)`
	`1`	`+# Bootstrap Ruby Gem [![Build Status](https://travis-ci.org/twbs/bootstrap-rubygem.svg?branch=master)](https://travis-ci.org/twbs/bootstrap-rubygem) [![Gem](https://img.shields.io/gem/v/bootstrap.svg)](https://rubygems.org/gems/bootstrap)`
`2`	`2`
`3`	`3`	`This is the future home of the Bootstrap v4 ruby gem for Ruby on Rails (Sprockets) and Compass.`
`4`	`4`