[gobject-introspection] gir: Update annotations from glib 2.66.0

[Rico Tzschichholz <ricotz src gnome org>]

commit 7c9edf260b7c58a1587aa9b31c9f747bd6964487
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Sat Sep 12 17:51:30 2020 +0200

    gir: Update annotations from glib 2.66.0

 gir/glib-2.0.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gir/glib-2.0.c b/gir/glib-2.0.c
index 9782dd5fb..3463a2ace 100644
--- a/gir/glib-2.0.c
+++ b/gir/glib-2.0.c
@@ -5557,7 +5557,7 @@
 
 
 /**
- * SECTION:date-time
+ * SECTION:datetime
  * @title: GDateTime
  * @short_description: a structure representing Date and Time
  * @see_also: #GTimeZone
@@ -8678,7 +8678,7 @@
 
 
 /**
- * SECTION:trees-binary
+ * SECTION:treesbinary
  * @title: Balanced Binary Trees
  * @short_description: a sorted collection of key/value pairs optimized
  *                     for searching and traversing in order
@@ -8711,7 +8711,7 @@
 
 
 /**
- * SECTION:trees-nary
+ * SECTION:treesnary
  * @title: N-ary Trees
  * @short_description: trees of data with any number of branches
  *