[gtk] docs: Document GtkEventControllerKey

[Matthias Clasen <matthiasc src gnome org>]

commit 36396093e672195edcc23d76cc8f15b0bc5e2c0b
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Jun 26 12:19:00 2018 -0400

    docs: Document GtkEventControllerKey
    
    The long description was missing.

 docs/reference/gtk/gtk4-sections.txt |  2 +-
 gtk/gtkeventcontrollerkey.c          | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)
---
diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index a09f54192a..3ed1105e33 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -6502,7 +6502,7 @@ gtk_event_controller_motion_get_type
 
 <SECTION>
 <FILE>gtkeventcontrollerkey</FILE>
-<TITLE>GtkEventControlerKey</TITLE>
+<TITLE>GtkEventControllerKey</TITLE>
 GtkEventControllerKey
 gtk_event_controller_key_new
 
diff --git a/gtk/gtkeventcontrollerkey.c b/gtk/gtkeventcontrollerkey.c
index ecac19478b..0587101a63 100644
--- a/gtk/gtkeventcontrollerkey.c
+++ b/gtk/gtkeventcontrollerkey.c
@@ -17,6 +17,16 @@
  * Author(s): Carlos Garnacho <carlosg gnome org>
  */
 
+/**
+ * SECTION:gtkeventcontrollerkey
+ * @Short_description: Event controller for key events
+ * @Title: GtkEventControllerKey
+ * @See_also: #GtkEventController
+ *
+ * #GtkEventControllerKey is an event controller meant for situations
+ * where you need access to key events.
+ **/
+
 #include "config.h"
 
 #include "gtkintl.h"