[gtk-doc/gtk-doc-for-gtk4] Bring the tocs back

[Matthias Clasen <matthiasc src gnome org>]

commit 65a3c49f19fa9d72210ecf5768d73a909a0f853e
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jun 6 13:16:54 2020 -0400

    Bring the tocs back
    
    We need a toc depth of 2, or else the sections
    we added for e.g. GtkFilter implementations do
    not show up at all.

 gtk-doc.xsl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk-doc.xsl b/gtk-doc.xsl
index b82661d..7d6530b 100644
--- a/gtk-doc.xsl
+++ b/gtk-doc.xsl
@@ -18,7 +18,7 @@
   <!-- change some parameters -->
   <!-- http://docbook.sourceforge.net/release/xsl/current/doc/html/index.html -->
   <xsl:param name="admon.style"/>
-  <xsl:param name="toc.section.depth">1</xsl:param>
+  <xsl:param name="toc.section.depth">2</xsl:param>
   <xsl:param name="generate.toc">
     book       toc
     chapter toc