Update README.md

README.md

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 # openrazer_pywal
-Python script, which takes colorscheme from PyWal and applies to Razer Chroma devices
+Python script, which generates colorscheme of current wallpaper usin pywal, and applies to all Razer Chroma devices which are connected, using openrazer.
+# Requirements
+Python3
+PyWal
+OpenRazer
+# Installation
+Place script file somewhere you feel comfortable, and than just add it to autostart how you usually do it. 
+
+Warning: It's recommended to put script after pywal in autostart 
+
+Example for i3:
+Copy razerwal.py to ~/.config/i3/
+ ~/.config/i3/config:
+exec_always --no-startup-id wal -i ~/Pictures/wallpapers # Pywal startup
+exec_always --no-startup-id python3 razerwal.py # Execute the script
+
+# Thank you