add SVG conversion script
add submission.md and screenshot
moved submission files, did not delete in git
rename screenshot to more useful name
remove old script from git
move overview to notes/ dir
create & export android icon
refactor: useful usage message; parse args with getopts; width and height no longer required
fix option parsing & getopts errors with expecting non-string operators for width and height
add Wikipedia SVG & exported PNG logo (big)
optimize PNGs
fix spelling error in git repo in submission