[observer] Correct documentation

Fix mistakes found by 'xmllint'.

1 files changed, 3 insertions, 4 deletions

diff --git a/lib/observer/doc/src/ttb_ug.xml b/lib/observer/doc/src/ttb_ug.xml
index ba8c997133..e2a28d67d0 100644
--- a/lib/observer/doc/src/ttb_ug.xml
+++ b/lib/observer/doc/src/ttb_ug.xml
@@ -320,7 +320,7 @@ do_print(Out,{trace_ts,P,return_from,{M,F,A},R,Ts},N) ->
 </code>
         </section>
         <section>
-          <label>Overload protection</label>
+          <title>Overload protection</title>
           <p>When tracing live systems, special care needs to be always taken
             not to overload a node with too heavy tracing. <c>ttb</c> provides
             the <c>overload</c> option to help to address the problem.</p>
@@ -747,7 +747,7 @@ f3() ->
       of the <c>ttb</c> for setting trace flags on processes and trace
       patterns for call trace, i.e. the functions <c>p</c>, <c>tp</c>,
       <c>tpl</c>, <c>ctp</c>, <c>ctpl</c> and <c>ctpg</c>. There are only
-      two things added by <c>ttb</c> for these functions:
+      two things added by <c>ttb</c> for these functions:</p>
       <list type="bulleted">
         <item>all calls  are stored in the history buffer and can be
           recalled and stored in a configuration file. This makes it
@@ -756,9 +756,8 @@ f3() ->
           typing when using <c>ttb</c> from the erlang shell;</item>
         <item>shortcuts are provided for the most common match
           specifications (in order not to force the user to use
-          <c>dbg:fun2ms</c> continually</item>).
+          <c>dbg:fun2ms</c> continually).</item>
       </list>
-      </p>
     <p>Use <c>list_history/0</c> to see the content of the history
       buffer, and <c>run_history/1</c> to re-execute one of the entries.
       </p>