Fixed typos

INSTALL.md

 
 If you want to keep default vim-ish behavior and have all local config in
 ~/.vimrc, you can use above generic steps.  However, if you want to have
-rtather more sophisticated model, and for example use my vim configuration
+rather more sophisticated model, and for example use my vim configuration
 as a starting point, do this instead of step 2:
 
 1.  Merge your local ~/.vimrc into dotfiles/vim/vimrc
 
 If you have a local changes that you don't want to share, you can either put
 them into the re-created ~.gitconfig, or (as I prefer) in
-dotfiles/git/privete/gitconfig
+dotfiles/git/private/gitconfig