Updated README.md
Updated ideas.txt

Idea for testing to make sure the analog pins have not been damaged, as
there is minimal protection
Add clamping diodes

Clamping diodes have been added to the contact inputs.

Support for ST7735-compatible LCDs has been added to the main LCD
header.
Initial code added

Absolutely nothing here yet, but setting up the layout / formatting and
some pin defines for the LCD interface.