init of the project
write a short background in README.md
add mGSD demo3.html

a demo mGSD (3.19beta) that is downloaded from http://monkeygtd.tiddlyspot.com/demo3.html
replace the demo mGSD with my mGSD file that I use daily (cleanup version)

the demo is 3.19beta and mine is 3.18beta. need to be updated later.