Fixup the readme.

README.md

@@ -6,7 +6,7 @@ Super experimental [Le Capybara](https://github.com/sporkus/le_capybara_keyboard
 
 After first loading the firmware, you need to run the calibration. Use a terminal, e.g. putty, tio, etc to connect to the virtual console device, e.g. `/dev/ttyACM0`:
 
-You'll be presented with a prompt like `uart :~$`. At the prompt, type `ec matrix calibration load` and hit enter. As prompted, follow the sequence to press and release each key from top left to bottom right.
+You'll be presented with a prompt like `uart :~$`. At the prompt, type `ec matrix calibration start` and hit enter. As prompted, leave all the keys alone while the low baselines are set, and then when prompted press each key slowly in sequence.
 
 After the calibration completes, type `ec matrix calibration save` to persist the calibration to flash. You can re-run this process later if needed if you've made changes and need to recalibrate things.