added README text and changed windows title

Signed-off-by: Ebbe Baß <ebbe.bass>

README.md

@@ -1,3 +1,8 @@
 # bpm-to-showcontroller-live-converter
 
 This is a small aplication that can convert BPM to the value you have to set the speedmaster in Showcontroller/Dynamics Live to get the specific BPM you want.
+
+I made this since the speedmaster in Live doesn't correspond to any BPM in a "logical" way. So this means when the fader is at 255 the actual BPM is way higher. I made this calculator by making some "probe points" with another script I used for detecting the actual BPM and then noting the BPM and the corresponding fader value.
+
+Why did I even make this application?
+I control Showcontroller Live via ArtNet and therefor I use the speedmaster to set the speed of the song for Live. This application does not send a MidiClock signal or something like that. It just calculates the fader value that you can then use in your lighting control software. 

main.py

@@ -20,7 +20,7 @@ def convert(event=None):
 
 # Create UI
 root = tk.Tk()
-root.title("BPM to Showcontroller Live calculator")
+root.title("BPM to Live calculator")
 root.geometry("300x150")
 
 frame = ttk.Frame(root, padding=10)