Some more UBIFS docs

[Artem Bityutskiy]

Hi,

for those interested we've shared the results of our UBIFS compression
experiments here:

http://www.linux-mtd.infradead.org/misc.html#L_ubifs_compr

We have added/improved other docs recently, and planning to add more
docs soon, watch the "News" section:

http://www.linux-mtd.infradead.org/index.html

-- 
Best regards,
Artem Bityutskiy (Битюцкий Артём)