[gtk+] Expand the docs

[Matthias Clasen <matthiasc src gnome org>]

commit 6f00c1b6268cb2ac573b845ee881832b5edc4a0a
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Dec 4 16:18:24 2017 -0800

    Expand the docs
    
    Cross-reference the serializers.

 gdk/gdkcontentprovider.c |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)
---
diff --git a/gdk/gdkcontentprovider.c b/gdk/gdkcontentprovider.c
index d15eb49..15ffb93 100644
--- a/gdk/gdkcontentprovider.c
+++ b/gdk/gdkcontentprovider.c
@@ -28,9 +28,17 @@
  * SECTION:gdkcontentprovider
  * @Short_description: Provides content for data transfer between applications
  * @Title: GdkContentProvider
+ * @See_also: #GdkContentSerializer, #GdkContentDeserializer
  *
  * A GdkContentProvider is used to provide content for the clipboard in
  * a number of formats.
+ *
+ * To create a GdkContentProvider, use gdk_content_provider_new_for_value() or
+ * gdk_content_provider_new_for_bytes().
+ *
+ * GDK knows how to handle common text and image formats out-of-the-box. See
+ * #GdkContentSerializer and #GdkContentDeserializer if you want to add support
+ * for application-specific data formats.
  */
 
 typedef struct _GdkContentProviderPrivate GdkContentProviderPrivate;
@@ -254,7 +262,7 @@ gdk_content_provider_ref_storable_formats (GdkContentProvider *provider)
 }
 
 /**
- * gdk_content_provider_content_changeD:
+ * gdk_content_provider_content_changed:
  * @provider: a #GdkContentProvider
  *
  * Emits the #GdkContentProvider::contents-changed signal.