Add codacy badges

Author: axelrindle

README.md

@@ -1,4 +1,6 @@
 ![CI](https://github.com/axelrindle/github-version-checker/workflows/CI/badge.svg)
+[![Codacy Badge](https://app.codacy.com/project/badge/Grade/f82826738d2b43b1b8ba40dd780d1784)](https://www.codacy.com/gh/axelrindle/github-version-checker/dashboard?utm_source=github.com&utm_medium=referral&utm_content=axelrindle/github-version-checker&utm_campaign=Badge_Grade)
+[![Codacy Badge](https://app.codacy.com/project/badge/Coverage/f82826738d2b43b1b8ba40dd780d1784)](https://www.codacy.com/gh/axelrindle/github-version-checker/dashboard?utm_source=github.com&utm_medium=referral&utm_content=axelrindle/github-version-checker&utm_campaign=Badge_Coverage)
 
 # github-version-checker
 > Simple **version checker** working with **GitHub releases** and the **GitHub API**.