[PATCH] Spelling fixes for the manual

Hi

I was not able to find a bug tracking system for genius.
I am attaching a patch for the genius manual that fixes
spelling mistakes found while translating the manual.

The only thing I am not sure about is whether
two white spaces following a full stop are intentional.
I reduced it to one whitespace e.g.
"sentence 1 finishes. Sentence 2 continues."

-- 
Christian Kirbach