VFS: wikify README
VFS: wikify README

Change-Id: I746f7c8ddabd1e047b8d536df14586c5b1594d55

veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi