Typo fix (thanks
@@ -176,7 +176,7 @@ To flash the firmware, first put your board into bootloader mode by double click
or the one that is part of your keyboard). The controller should appear in your OS as a new USB storage device.
Once this happens, copy the correct UF2 file (e.g. left or right if working on a split), and paste it onto the root of that USB mass
-storage device. One the flash is complete, the controller should automatically restart, and load your newfly flashed firmware.
+storage device. Once the flash is complete, the controller should automatically restart, and load your newfly flashed firmware.
## Customization
