Update edit-grub-from-bliss-install.md

[knxwille]

1-) vi using 'insert' for enter editing mode and ':q' for exit vi. 2) Umounting is more safe before reboot -f

[Xtr126]

Sometimes logs are being written to /tmp, so I think its better to mount at /mnt (like before) than /tmp.

[electrikjesus]

Oops, I merged too fast then