texttag: Replace gtk3-demo reference with gtk4-demo

diff --git a/gtk/gtktexttag.c b/gtk/gtktexttag.c
index f357b3eba81eece1e9fba48a21f35c6e5b4d5dbc..27fbdff6b72cdb91ef5039ce31e793545431e694 100644 (file)
--- a/gtk/gtktexttag.c
+++ b/gtk/gtktexttag.c
@@ -61,7 +61,7 @@
  * before using them with that buffer.
  *
  * gtk_text_buffer_create_tag() is the best way to create tags.
- * See “gtk3-demo” for numerous examples.
+ * See “gtk4-demo” for numerous examples.
  *
  * For each property of #GtkTextTag, there is a “set” property, e.g.
  * “font-set” corresponds to “font”. These “set” properties reflect