Fix typo in the manual.
Fix typo in the manual.

marsijanin/cffi,3b/cffi,dochang/cffi,mcna/cffi,akovalenko/cffi,stassats/cffi,akovalenko/cffi,dochang/cffi,dkochmanski/cffi,cffi/cffi,wesen/cffi,wesen/cffi,3b/cffi,kingcheez/cffi-cheez,marsijanin/cffi,akovalenko/cffi,3b/cffi,stassats/cffi,marsijanin/cffi,kingcheez/cffi-cheez,attila-lendvai/cffi,stassats/cffi,cffi/cffi,attila-lendvai/cffi,wesen/cffi,kingcheez/cffi-cheez,mcna/cffi,dkochmanski/cffi,dkochmanski/cffi,cffi/cffi,dochang/cffi