Add rubygems badge to README

dnamsons · web-flow · commit 97974fcbd6d5 · 2018-10-31T13:31:39.000+02:00
diff --git a/README.md b/README.md
@@ -1,3 +1,4 @@
+[![Gem Version](https://badge.fury.io/rb/zstd-ruby.svg)](https://badge.fury.io/rb/zstd-ruby)
 [![Build Status](https://travis-ci.org/SpringMT/zstd-ruby.svg?branch=master)](https://travis-ci.org/SpringMT/zstd-ruby)
 
 # zstd-ruby

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+[![Gem Version](https://badge.fury.io/rb/zstd-ruby.svg)](https://badge.fury.io/rb/zstd-ruby)`
`1`	`2`	`[![Build Status](https://travis-ci.org/SpringMT/zstd-ruby.svg?branch=master)](https://travis-ci.org/SpringMT/zstd-ruby)`
`2`	`3`
`3`	`4`	`# zstd-ruby`