README.md in rock_fintech-0.18.1 vs README.md in rock_fintech-0.18.4

- old
+ new

@@ -1,5 +1,5 @@
-[![Gem Version](https://badge.fury.io/rb/rock_fintech.svg)](https://badge.fury.io/rb/rock_fintech)
+[![Gem](https://img.shields.io/gem/v/rock_fintech.svg?style=flat)](https://github.com/laoshucheng/rock-fintech)
 [![Build Status](https://travis-ci.org/laoshucheng/rock-fintech.svg?branch=master)](https://travis-ci.org/laoshucheng/rock-fintech)
 
 # RockFintech
 
 Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/rock_fintech`. To experiment with that code, run `bin/console` for an interactive prompt.