Minor change to how adding configs works

Author: tsterbak

README.md

@@ -78,7 +78,7 @@ Every step in the config file corresponds to one view in the application. These
 - `img`: Display an image on the left pane of the step view. Images are loaded from `openandroidinstaller/assets/imgs/`.
 - `allow_skip`: [OPTIONAL] boolean; If a skip button should be displayed to allow skipping this step. Can be useful when the bootloader is already unlocked.
 
-After you created a config file, you can open a pull request to make the file available to other users. The file should be named after device name output by `adb shell dumpsys bluetooth_manager | grep 'name:' | cut -c9-` when the devices is connected to the computer. Please also add the device to the supported devices table above.
+After you created a config file, you can open a pull request to make the file available to other users. The file should be named after device code output by `adb shell getprop | grep ro.product.device` when the devices is connected to the computer. Please also add the device to the supported devices table above.
 
 
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