vim: add voom

Signed-off-by: Michael Grote <michael.grote@posteo.de>

.vimrc

@@ -36,6 +36,8 @@ Plugin 'mbbill/undotree'
 Plugin 'machakann/vim-highlightedyank'
 " nord theme für vimdiff
 Plugin 'nordtheme/vim'
+" outline md usw.
+Plugin 'vim-voom/VOoM'
 call vundle#end()
 
 let mapleader = ","
@@ -161,6 +163,8 @@ nnoremap <F8> ciw``<C-r>"``<Esc>
 xnoremap <F8> c``<C-r>"``<Esc>
 
 " ### Keybindings
+" markdown outline in split
+nnoremap <F4> :Voom markdown<CR>
 " deaktiviere Ex-Mode keybinding
 nnoremap Q <Nop>