[gnome-builder] vim: add comment about macro recording

[Christian Hergert <chergert src gnome org>]

commit b3c9845c351745e6565b747fc1e95c5537902500
Author: Christian Hergert <christian hergert me>
Date:   Sat Mar 28 01:27:17 2015 -0700

    vim: add comment about macro recording

 data/keybindings/vim.css |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/data/keybindings/vim.css b/data/keybindings/vim.css
index 9fd1f8a..d0768c0 100644
--- a/data/keybindings/vim.css
+++ b/data/keybindings/vim.css
@@ -948,6 +948,9 @@
 
 @binding-set builder-vim-source-view-normal-q
 {
+  /* this is wrong, you can store in any character for recording and then
+   * replay with @char.
+   */
   bind "q" { "begin-macro" () };
 }