Update README.md

Changed formatting

README.md

@@ -1,19 +1,19 @@
 # PianoNoteCoach
 A trainer that helps you to read music notes.
 
-# How does it work?
+## How does it work?
 You open the application and press on the button "Start". After that, notes will be displayed and you must type them with your midi keyboard. If you don't have a midi keyboard, you can use the computer keyboard. For further information, look at the info dialog.
 
-# Requirements
+## Requirements
 You need Java 8 to run this program
 
-# Installation
+## Installation
 1. Download the latest release under https://github.com/BurningDev/PianoNoteCoach/releases
 2. Unzip the file, if it's an archive
 3. Connect your midi-keyboard with your computer
 4. Open the jar-File (it should be PianoNoteCoach.jar)
 
-# License
+## License
 Copyright 2019 BurningDev
 
 Licensed under the Apache License, Version 2.0 (the "License");