[gnome-builder] vim: add "Delete" note when in vim-insert-d mode

[Christian Hergert <chergert src gnome org>]

commit 182f6fc828d9fce094e138876d754a4ae701efc4
Author: Christian Hergert <christian hergert me>
Date:   Wed Apr 22 17:26:53 2015 -0700

    vim: add "Delete" note when in vim-insert-d mode
    
    I'm curious what translators think about translating strings like these.
    Vim does not appear to translate them (at least from what I've seen),
    but that doesn't mean we have to follow suit.

 data/keybindings/vim.css |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/data/keybindings/vim.css b/data/keybindings/vim.css
index 691ab14..39a513b 100644
--- a/data/keybindings/vim.css
+++ b/data/keybindings/vim.css
@@ -1404,6 +1404,7 @@ IdeSourceViewMode.vim-normal-c-i {
 IdeSourceViewMode.vim-normal-d {
   -IdeSourceViewMode-suppress-unbound: true;
   -IdeSourceViewMode-block-cursor: true;
+  -IdeSourceViewMode-display-name: "Delete";
 
   gtk-key-bindings: builder-vim-source-view,
                     builder-vim-source-view-normal-d;