[gnome-photos] egg-counter: Fix documentation typo

[Debarshi Ray <debarshir src gnome org>]

commit 8e6fe9c351acbc132e6a5dd505a0f609466ee3f8
Author: Debarshi Ray <debarshir gnome org>
Date:   Mon Sep 26 18:00:44 2016 +0200

    egg-counter: Fix documentation typo
    
    From gnome-builder commit a8af461ba2686931cfd646bb2002a03e2f0acecc
    
    https://bugzilla.gnome.org/show_bug.cgi?id=771995

 src/egg-counter.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/egg-counter.h b/src/egg-counter.h
index 412d3b9..6a74fdd 100644
--- a/src/egg-counter.h
+++ b/src/egg-counter.h
@@ -55,7 +55,7 @@
  * To increment the counter in a function of your choice (but within the
  * same module), use EGG_COUNTER_ADD, EGG_COUNTER_INC, EGG_COUNTER_DEC.
  *
- *   EGG_COUNTER_ADD (Symbol);
+ *   EGG_COUNTER_INC (Symbol);
  *
  *
  * Architecture Support