Remove more RESET keycode references (#18252)

keyboards/aidansmithdotdev/fine40/readme.md

@@ -24,4 +24,4 @@ Enter the bootloader in 3 ways:
 
 * **Bootmagic reset**: Hold down the key at (0,0) in the matrix (top left key) and plug in the keyboard
 * **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
-* **Keycode in layout**: Press the key mapped to `RESET` if it is available
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available