Add zk vimwiki

pkgs/vim/default.nix

@@ -169,7 +169,7 @@ let
       set wildmenu
 
       " Tag generation
-      command! MakeTags !ctags -R .
+      command! MakeTags !${universal-ctags}/bin/ctags -R .
 
       " Less noise in netrw
       let g:netrw_altv=1
@@ -189,6 +189,7 @@ let
       " vimwiki stuff
       let g:vimwiki_list = [
         \{'path': '~/vimwiki/personal.wiki'}
+        \{'path': '~/zk/', 'syntax': 'markdown', 'ext': '.md'}]
       \]
       au BufRead,BufNewFile *.wiki set filetype=vimwiki
       :autocmd FileType vimwiki map <leader>d :VimwikiMakeDiaryNote