add note about license
-rw-r--r-- 11358 LICENSE
-rw-r--r-- 2135 README
-rwxr-xr-x 1521 dircp
-rwxr-xr-x 4762 ex
-rwxr-xr-x 1861 gitget
-rwxr-xr-x 1564 hostmac
-rwxr-xr-x 2336 isdiff
-rw-r--r-- 4406 ll-function
-rwxr-xr-x 1974 rmln
-rwxr-xr-x 1776 wpm-game