-v, --verbose
    Show unified diff between the HEAD commit and what would be
    committed at the bottom of the commit message template. Note
    that this diff output doesn't have its lines prefixed with #.

-p, --patch
    Use the interactive patch selection interface to chose which changes to commit.
    See git-add(1) for details.

nnoremap <LocalLeader><LocalLeader> :DiffGitCached<CR>