README.md in gizzard-0.6.1 vs README.md in gizzard-0.7.0

- old
+ new

@@ -1,6 +1,8 @@
 # Gizzard
 
+[![Build Status](https://github.com/taka0125/gizzard/workflows/Ruby/badge.svg?branch=main)](https://github.com/taka0125/gizzard/actions)
+
 Often use snippet for ActiveRecord.
 
 ## Installation
 
 Add this line to your application's Gemfile: