Added codefactor badge

README.md

@@ -6,6 +6,7 @@
 
 [![Build Status](https://img.shields.io/azure-devops/build/flabbet/PixiEditor/6/master)](https://dev.azure.com/flabbet/PixiEditor/_build?definitionId=6) 
 [![codecov](https://codecov.io/gh/PixiEditor/PixiEditor/branch/master/graph/badge.svg)](https://codecov.io/gh/PixiEditor/PixiEditor)
+[![CodeFactor](https://www.codefactor.io/repository/github/pixieditor/pixieditor/badge)](https://www.codefactor.io/repository/github/pixieditor/pixieditor)
 [![Release](https://img.shields.io/github/v/release/flabbet/PixiEditor)](https://github.com/flabbet/PixiEditor/releases) 
 [![Downloads](https://img.shields.io/github/downloads/PixiEditor/PixiEditor/total)](https://github.com/flabbet/PixiEditor/releases)
 [![Discord Server](https://badgen.net/badge/discord/join%20chat/7289DA?icon=discord)](https://discord.gg/qSRMYmq) 
@@ -80,4 +81,4 @@ You can find [FAQ here](https://github.com/PixiEditor/PixiEditor/wiki/FAQ).
 
 ## License
 
-This project is licensed under the MIT License - see the [LICENSE.md](https://github.com/flabbet/PixiEditor/blob/master/LICENSE) - file for details
+This project is licensed under the MIT License - see the [LICENSE.md](https://github.com/flabbet/PixiEditor/blob/master/LICENSE) - file for details