Update README.txt

Add files via upload

updates to kath's code

added kath's flow sampling code

added a newline to fix bluetooth bug when dending empty data

updated flow code

loops through all the colors

full code version that activates with buttons instead of nfc

i2c scanning test code

added delay between sending files to main code

added a delay between sending files

modified for easier integration testing, able to send individual files by name specified

added bluetooth format updates

modified battery sending format

Merge branch 'main' of github.com:joieli/SmartSpacerArduino into main