README.md: Add warning about CalyxOS automatically turning off OEM un…

…locking

Issue: #84

Signed-off-by: Andrew Gunnerson <accounts+github@chiller3.com>

README.md

@@ -180,6 +180,8 @@ To install the Python dependencies:
 
 10. **[Initial setup only]** Lock the bootloader. This will trigger a data wipe again. **Do not uncheck `OEM unlocking`!**
 
+    **WARNING**: If you are flashing CalyxOS, the setup wizard will [automatically turn off the `OEM unlocking` switch](https://github.com/CalyxOS/platform_packages_apps_SetupWizard/blob/7d2df25cedcbff83ddb608e628f9d97b38259c26/src/org/lineageos/setupwizard/SetupWizardApp.java#L135-L140). Make sure to manually reenable it again from Android's developer settings.
+
 ## Updates
 
 To update Android or Magisk: