Add Codacy badge

Author: codacy-badger

README.md

@@ -1,6 +1,7 @@
 VisiCut
 =======
 
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/6ded4f0de59d41969fef2d71312f0b4f)](https://app.codacy.com/manual/t-oster/VisiCut?utm_source=github.com&utm_medium=referral&utm_content=t-oster/VisiCut&utm_campaign=Badge_Grade_Settings)
 [![Build Status](https://travis-ci.org/t-oster/VisiCut.svg?branch=master)](https://travis-ci.org/t-oster/VisiCut)
 
 a userfriendly, platform-independent tool for preparing, saving and sending jobs to Lasercutters.