[easytag] Add help page about tags

[Ekaterina Gerasimova <egerasimov src gnome org>]

commit 161d8bd6981ef669c8e5d16ba8eff7c560a5ee32
Author: Ekaterina Gerasimova <kittykat3756 gmail com>
Date:   Fri Apr 26 22:26:30 2013 +0100

    Add help page about tags

 help/C/tag.page |   28 +++++++++++++++++++++++-----
 1 files changed, 23 insertions(+), 5 deletions(-)
---
diff --git a/help/C/tag.page b/help/C/tag.page
index d34a7d5..1fc6fac 100644
--- a/help/C/tag.page
+++ b/help/C/tag.page
@@ -1,18 +1,36 @@
 <page xmlns="http://projectmallard.org/1.0/";
-      type="topic" style="task"
+      xmlns:its="http://www.w3.org/2005/11/its";
+      type="guide" style="task"
       id="tag">
 
   <info>
-    <revision version="0.1" pkgversion="2.1.9" date="2013-03-05" status="stub"/>
+    <link type="guide" xref="index#main" group="#first"/>
+    <revision version="0.1" pkgversion="2.1.9" date="2013-03-13" status="stub"/>
 
     <include href="legal.xml" xmlns="http://www.w3.org/2001/XInclude"/>
 
-    <desc></desc>
+    <credit type="author">
+      <name>Ekaterina Gerasimova</name>
+      <email its:translate="no">kittykat3756 googlemail com</email>
+    </credit>
+
+    <desc>What is a tag and what are fields?</desc>
 
   </info>
 
-  <title></title>
+  <title>Audio file tags</title>
+
+  <p>An audio file can contain <em>metadata</em> — information about itself —
+  inside a <em>tag</em>. Each tag can contain one or more <em>fields</em>, such
+  as <gui>Title</gui> or <gui>Artist</gui>. You can edit some of these fields
+  using <app>EasyTAG</app>. The editable fields depend on the format of the
+  file that you want to tag.</p>
 
-  <p></p>
+  <!--
+  <p>Select the file that you want to tag and edit the field that you want to
+  update. Save the changes by selecting
+  <guiseq><gui style="menu">File</gui><gui style="menuitem">Save Files</gui></guiseq>
+  and confirming by pressing <gui style="button">Save</gui>.</p>
+  -->
 
 </page>