[empathy] add HACKING file pointing to the wiki

[Guillaume Desmottes <gdesmott src gnome org>]

commit 50a56664bf4bd3bf9d2a8175bc92ea96c12ddc69
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Fri Apr 24 10:11:05 2009 +0100

    add HACKING file pointing to the wiki
---
 HACKING |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/HACKING b/HACKING
new file mode 100644
index 0000000..778244f
--- /dev/null
+++ b/HACKING
@@ -0,0 +1,2 @@
+See http://live.gnome.org/Empathy/ about coding style conventions.
+See also http://live.gnome.org/Empathy/Git to read about our git workflow.