Updated to version 5.1

Added second new visual speed type display
Renamed Config.Config to Config.config (Private variable)
Renamed Config.config to Config.ConfigFile (Local variable)
Added red triangle to the discouraged visual speed type display
Cleaned up some code
Added credits to org.json to readme.md

readme.md

@@ -1,6 +1,9 @@
 # Speedometer
 This is a simple mod for forge and fabric that displays your current speed
 
+## Credits to
+[org.json](https://www.json.org/json-en.html) *Included due to problems whit ForgeGradle*
+
 ## Compile your own version?
 1. Download source code
    * Run `git clone https://github.com/zaze06/Speedometer`