arduino-core-avr: capitalization-error-in-description WiFi Wi-Fi

# These text based files are required and expected by the Arduino IDE.
arduino-core-avr: package-contains-documentation-outside-usr-share-doc usr/share/arduino/hardware/arduino/avr/*/*.md
arduino-core-avr: package-contains-documentation-outside-usr-share-doc usr/share/arduino/hardware/arduino/avr/bootloaders/optiboot/README.TXT
arduino-core-avr: package-contains-documentation-outside-usr-share-doc usr/share/arduino/hardware/arduino/avr/*.txt

# Mostly for the same reason as above we can ignore this.
arduino-core-avr: repeated-path-segment arduino usr/share/arduino/hardware/arduino/
arduino-core-avr: repeated-path-segment arduino usr/share/arduino/hardware/arduino/avr/cores/arduino/
