Update index.md

Author: nup002

1209/2211/index.md

@@ -11,4 +11,6 @@ Mathpad is a keypad for students and professionals in any STEM field.
 Mathpad allows for effortless typing of mathematical symbols and equations across applications and operating systems.
 
 Mathpad's firmware is built on QMK and licensed under GNU General Public License v3. 
-Its hardware is licensed under CERN-OHL-S v2
+Its hardware is licensed under CERN-OHL-S v2
+
+Mathpad is OS agnostic and works with Windows, macOS, and virtually all Linux distros.