Minor capitalization and awkward wording fixes
Minor capitalization and awkward wording fixes

- Replace all occurences of Jedi-Vim/Jedi with jedi-vim/jedi
- Capitalize first letter on bullet points
- oh god how do i english
- Fix wrong description of g:jedi#auto_close_doc option

sethfowler/pygmalion-vim,itchyny/jedi-vim,clavery/jedi-vim,blueyed/jedi-vim,davidhalter/jedi-vim,genzj/jedi-vim,FBruynbroeck/jedi-vim,pze/jedi-vim,jmartiuk5/jedi-vim,aliev/jedi-vim,wilywampa/jedi-vim,maxamillion/jedi-vim