[gtksourceview: 1/2] docs: GSV5 depends on GTK4, not GTK+ 3

[Christian Hergert <chergert src gnome org>]

commit f09b8166e3ed15854c28ad53909fd7d95b047c86
Author: Vanadiae <vanadiae35 gmail com>
Date:   Sat Jul 31 19:36:32 2021 +0000

    docs: GSV5 depends on GTK4, not GTK+ 3

 docs/reference/intro.xml.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/docs/reference/intro.xml.in b/docs/reference/intro.xml.in
index 5e936b11..eb993175 100644
--- a/docs/reference/intro.xml.in
+++ b/docs/reference/intro.xml.in
@@ -21,7 +21,7 @@
   </para>
 
   <para>
-    GtkSourceView @GSV_API_VERSION@ depends on GTK+ 3.
+    GtkSourceView @GSV_API_VERSION@ depends on GTK 4.
   </para>
 
   <refsect1>