📚 Add README

Author: TobseF

README.md

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+# 💣💻🔨 ExitGame - Coding Challenge
+
+[![Kotlin](https://img.shields.io/badge/Kotlin-1.3.40-blue.svg?style=flat&logo=kotlin&logoColor=white)](http://kotlinlang.org)
+[![LibGDX](https://img.shields.io/badge/JUnit-5.5.1-25A162.svg)](https://junit.org/junit5/)
+ 
+This coding challenge is part of an [ExitGame](https://github.com/TobseF/exit-game-bomb-app) where payers have to deactivate a bomb.
+
+The Bomb runs on an Android device. It starts with a countdown before it explodes.
+It's not accessible for the players. Players have to deactivate the bomb with this coding challenges.
+The deactivation commands are sent to an REST interface of the [Bomb-App](https://github.com/TobseF/exit-game-bomb-app).
+
+## [📚 Bomb Instruction Manual](https://github.com/TobseF/its-exit-game-bomb/releases/download/v0.0.1/Bomb.Instruction.Manual.pdf)
+The players read the [Bomb Instruction Manual](https://github.com/TobseF/its-exit-game-bomb/releases/download/v0.0.1/Bomb.Instruction.Manual.pdf) which helps
+them to solve the included tests. Print it for them.  
+⚠ This README contains information which should not visible for the ExitGame players. 
+
+## 📱 Bomb App
+The players solve the puzzle by trigger unit tests which access the bombs REST API.
+1. **[Bomb-App](https://github.com/TobseF/exit-game-bomb-app)**  
+  The app which runs on the bombs hardware.
+2. **[Bomb-Client-App](https://github.com/TobseF/bomb-client-app)**  
+  The admin UI which can change settings of the bomb an check the bombs state. This is of course not available for the players.
+
+## 🚀 Start
+Run the [JUnit](https://junit.org/junit5/) test according the bomb manual.