Update

README.md

@@ -21,6 +21,7 @@ Usage:  `sudo ./install.sh`  **[OPTIONS...]**
 | -s, --stylish  | Stylish grub theme |
 | -t, --tela     | Tela grub theme |
 | -l, --slaze    | Slaze grub theme |
+| -w, --white    | Install white icon color version |
 | -2, --2k       | Install 2k(2560x1440) background image |
 | -4, --4k       | Install 4k(3840x2160) background image |
 | -r, --remove   | Remove theme (must add theme name option) |