add subsection

diff --git a/doc/handbook/chapters/installation.texi b/doc/handbook/chapters/installation.texi
index 830c067a0e8c845082a29d4e8e20a6dc51ee120b..1bbc51dbd734741fa0c493658bcd2eb90dc1686c 100644 (file)
--- a/doc/handbook/chapters/installation.texi
+++ b/doc/handbook/chapters/installation.texi
@@ -229,7 +229,8 @@ system-wide DNS interception, NAT traversal using ICMP) will not work.
 $ sudo make install
 @end example
 
-@node Extra Installation step: NSS plugin
+@node Extra installation step: NSS plugin
+@subsection Extra installation step: NSS plugin
 
 @cartouche
 The installation of the NSS plugin is only necessary if GNS