README: Update design files links. Add changes for version 1.1
drwxr-xr-x - Documentation
drwxr-xr-x - KiCad
-rw-r--r-- 35149 LICENSE
-rw-r--r-- 14654 README.md
drwxr-xr-x - SPLD
drwxr-xr-x - gerber
drwxr-xr-x - images