two typo fix

Fixed two grammatical errors: 1. Changed "handle" to "handles" in the system architecture section - Original: "It runs Lua, as well as handle Bluetooth networking..." - Fixed: "It runs Lua, as well as handles Bluetooth networking..." - Explanation: The subject "It" (referring to nRF52) requires the third-person singular verb form "handles" to maintain subject-verb agreement. 2. Changed "many" to "may" in the debugging section - Original: "You many need to unlock the device..." - Fixed: "You may need to unlock the device..." - Explanation: "Many" is a determiner/adjective meaning "a large number of", while "may" is a modal verb expressing possibility. The context requires the modal verb to indicate that unlocking might be necessary.