add filetype comment

conf.d/vim/vim/functions.vim

@@ -111,3 +111,6 @@ endfunction
 
 " -----
 "  }}}
+
+
+" vim:ft=vim

conf.d/vim/vim/keybindings.vim

@@ -318,3 +318,6 @@ map <leader>Ga :Git add
 map <leader>Gc :Git commit
 " -----
 "  }}}
+
+
+" vim:ft=vim

conf.d/vim/vim/plug.vim

@@ -164,4 +164,4 @@ call plug#end()
 "  }}}
 
 
-
+" vim:ft=vim

conf.d/vim/vim/startscreen.vim

@@ -73,3 +73,6 @@ let g:startify_commands = [
   \ ['Nouveau', 'enew'],
   \ ['Aide', 'help reference'],
   \ ]
+
+
+" vim:ft=vim

conf.d/vim/vimrc

@@ -687,4 +687,4 @@ source $HOME/.vim/functions.vim
 source $HOME/.vim/keybindings.vim
 
 
-
+" vim:ft=vim