Fix some help markup issues.

common/locale/en-US/developer.xml

@@ -57,18 +57,24 @@
 </item>
 </html:div>
 
+<p>
     If you don't know in which file/section you should put some
-documentation, ask on the mailing list or on #vimperator.
+    documentation, ask on the mailing list or on
+    <link topic="irc://irc.freenode.net/vimperator">#vimperator</link>.
+</p>
 
 <h2 tag="generating-docs">Generating documentation</h2>
 
+<p>
     You can also autogenerate most of the XML help after you have
-written a new command, mapping or option. For this, use:
+    written a new command, mapping or option.
+</p>
 
-  :echo util.generateHelp(commands.get("addons"), "Extra text")
+<example><ex>:echo util.generateHelp(commands.get(<str>addons</str>), <![CDATA[<p>Extra text</p>]]>)</ex></example>
 
 <h2 tag="writing-plugins">Writing plugins</h2>
 
+<p>
     Writing &liberator.appname; plugins is incredibly simple.
     Plugins are simply JavaScript files which run with full chrome
     privileges and have full access to the &liberator.appname; and
@@ -82,14 +88,17 @@ installed in your <o>runtimepath</o><em>/plugin</em> directory
     will find its context stored in
     <em>plugins.&lt;pluginName></em>, which is often invaluable
     during development and testing.
+</p>
 
 <h3 tag="plugin-documentation">Plugin documentation</h3>
 
+<p>
     Plugins may provide inline documentation, which will appear on
     the <ex>:help plugins</ex> page. The markup for help entries
     is the same as the above, with a few more plugin specific
     entries. Here is an example from the popular
     <em>flashblock</em> extension:
+</p>
 
 <code><![CDATA[
 var INFO = 
@@ -125,6 +134,7 @@ var INFO =
 ]]>
 </code>
 
+<p>
     The inline XML is made possible by
     <link topic="https://developer.mozilla.org/en/E4X">E4X</link>.
     It's important that the documentation be assigned to the
@@ -137,6 +147,7 @@ documentation is not required, we strongly recommend that all
     plugin authors provide at least basic documentation of the
     functionality of their plugins and of each of the options,
     commands, and especially mappings that they provide.
+</p>
 
 </document>