man: add an extra <refsect2>

DocBook's document model doesn't allow block content after a section.

diff --git a/man/systemd.resource-control.xml b/man/systemd.resource-control.xml
index fee4971a97a7d7104357bc9b20206ce12c5f9865..298ba8f9c404ad2fb13122790708c331dbb1724e 100644 (file)
--- a/man/systemd.resource-control.xml
+++ b/man/systemd.resource-control.xml
@@ -151,10 +151,13 @@ CPUWeight=20   DisableControllers=cpu              /          \
       applies to all user slices.</para>
     </refsect2>
 
-    <para>See the <ulink
-    url="https://www.freedesktop.org/wiki/Software/systemd/ControlGroupInterface">New
-    Control Group Interfaces</ulink> for an introduction on how to make
-    use of resource control APIs from programs.</para>
+    <refsect2>
+      <title/>
+      <para>See the <ulink
+      url="https://www.freedesktop.org/wiki/Software/systemd/ControlGroupInterface">New
+      Control Group Interfaces</ulink> for an introduction on how to make
+      use of resource control APIs from programs.</para>
+    </refsect2>
   </refsect1>
 
   <refsect1>