[POWERPC] Fix typos in booting-without-of.txt
[POWERPC] Fix typos in booting-without-of.txt

Fix typos + some cosmetic changes.

Signed-off-by: Domen Puncer <eb6483244effab215c8972f18c4ab8ed31675fce@telargo.com>
Signed-off-by: Paul Mackerras <19a0ba370c443ba08d20b5061586430ab449ee8c@samba.org>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas