Merge pull request #3 from vil02/add_badges

docs: add badges

README.md

@@ -1,5 +1,10 @@
 # About `puzzle_generator`
 
+[![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=vil02_puzzle_generator&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=vil02_puzzle_generator)
+[![codecov](https://codecov.io/gh/vil02/puzzle_generator/graph/badge.svg?token=C4HUFJ9QJH)](https://codecov.io/gh/vil02/puzzle_generator)
+[![CodeFactor](https://www.codefactor.io/repository/github/vil02/puzzle_generator/badge)](https://www.codefactor.io/repository/github/vil02/puzzle_generator)
+[![Codacy Badge](https://app.codacy.com/project/badge/Grade/0f53341a63914f1f9656782bff0e5089)](https://app.codacy.com/gh/vil02/puzzle_generator/dashboard?utm_source=gh&utm_medium=referral&utm_content=&utm_campaign=Badge_grade)
+
 Basic functionality of [`puzzle_generator`](./puzzle_generator) is to generate
 a single python file representing a puzzle or quiz.
 The answers and the upcoming questions are encrypted.