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README.md

@@ -1,5 +1,7 @@
 # docker-mysql-shell
 
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/314c46648b7a4b85a25edfeef95edad5)](https://app.codacy.com/gh/snickerjp/docker-mysql-shell?utm_source=github.com&utm_medium=referral&utm_content=snickerjp/docker-mysql-shell&utm_campaign=Badge_Grade_Settings)
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 ## spec
 
 * Ubuntu