[gdk-pixbuf] docs: Fix link to "Image data" section in API docs

[Bastien Nocera <hadess src gnome org>]

commit 1b92a2dc1a4e59f4ae4ea5cd79a81a4ea023578e
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Dec 4 18:28:55 2017 +0100

    docs: Fix link to "Image data" section in API docs
    
    Reference links use "[title][id]" not "[title](id)", that's for URLs.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=765282

 gdk-pixbuf/gdk-pixbuf.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gdk-pixbuf/gdk-pixbuf.c b/gdk-pixbuf/gdk-pixbuf.c
index 27e5730..a0454c3 100644
--- a/gdk-pixbuf/gdk-pixbuf.c
+++ b/gdk-pixbuf/gdk-pixbuf.c
@@ -676,7 +676,7 @@ gdk_pixbuf_get_bits_per_sample (const GdkPixbuf *pixbuf)
  * Queries a pointer to the pixel data of a pixbuf.
  *
  * Return value: (array): A pointer to the pixbuf's pixel data.
- * Please see the section on [image data](image-data) for information
+ * Please see the section on [image data][image-data] for information
  * about how the pixel data is stored in memory.
  *
  * This function will cause an implicit copy of the pixbuf data if the
@@ -696,7 +696,7 @@ gdk_pixbuf_get_pixels (const GdkPixbuf *pixbuf)
  * Queries a pointer to the pixel data of a pixbuf.
  *
  * Return value: (array length=length): A pointer to the pixbuf's
- * pixel data.  Please see the section on [image data](image-data)
+ * pixel data.  Please see the section on [image data][image-data]
  * for information about how the pixel data is stored in memory.
  *
  * This function will cause an implicit copy of the pixbuf data if the