formatting updates

Author: xtruan

README.md

@@ -3,7 +3,8 @@
 - Built against `0.78.1` Flipper Zero firmware release
 - Using Trezor crypto libs from `core/v2.5.3` release
 - Included in [RogueMaster Custom Firmware](https://github.com/RogueMaster/flipperzero-firmware-wPlugins)
-- DONATE TO SUPPORT DEVELOPMENT:
+
+### DONATE IF YOU FIND THE APP USEFUL
   - ETH (or ERC-20): `xtruan.eth` or `0xa9Ad79502cdaf4F6881f3C2ef260713e5B771CE2`
   - BTC: `16RP5Ui5QrWrVh2rR7NKAPwE5A4uFjCfbs`