[gimp-web/testing] Added reference for some patch apply stuff

[Pat David <patdavid src gnome org>]

commit ecc448fee5d14a1fc11687fe19534823525172ef
Author: Pat David <patdavid gmail com>
Date:   Tue Nov 24 13:09:20 2015 -0600

    Added reference for some patch apply stuff

 content/about/meta/git-workflow.md |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/content/about/meta/git-workflow.md b/content/about/meta/git-workflow.md
index f3d5cd1..2a9bab2 100644
--- a/content/about/meta/git-workflow.md
+++ b/content/about/meta/git-workflow.md
@@ -142,3 +142,6 @@ The reason is that `git am` is *signing off* on the patch, and will carry that i
 This is helpful if there's a different author but we need to track down who actually committed the patch.
 
 `git am --signoff < some_cool_stuff.patch`
+
+<small markdown=1>I referenced [this post][] by Ariejan de Vroom for some of this information.</small>
+[this post]: https://ariejan.net/2009/10/26/how-to-create-and-apply-a-patch-with-git/