Move library to root of repository

A popular library installation technique is to download the library via GitHub's Clone or download > Download ZIP and then use the Arduino IDE's Sketch > Include Library > Add .ZIP Library on the downloaded file. This requires the library to be in the root of the repository, not in a subfolder. If the library is not in the root of the repository this installation technique fails:

Specified folder/zip file does not contain a valid library

This move is also required if you wanted to add your library to the Arduino Library Manager index, which provides an even easier installation option.

README.md

@@ -21,7 +21,8 @@ See the example included in the library for info on how to use it!
 
 ## Installation
 
-Place the "LibAPRS" folder (the one in the same folder as this readme file) inside your Arduino "libraries" folder. That's all!
+1. Download the library: https://github.com/markqvist/LibAPRS/archive/master.zip
+1. (In the Arduino IDE) Sketch > Include Library > Add .ZIP Library... > select the downloaded file > Open
 
 ## Getting started