Bug 574740 - Updating Accessibility preferences help page

The following was changed
- Remove 'page' from title and use plural
- Use formal addressing at the start
- Update option for quick diff characters to current state
- Change wording of description of option for quick diff characters

Change-Id: Ifa92c67fef167f0e84f708b23dacfe12d2c646f9
Signed-off-by: Dieter Mai <maidieter@googlemail.com>
Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.common/+/182899
Tested-by: Rolf Theunissen <rolf.theunissen@gmail.com>
Reviewed-by: Rolf Theunissen <rolf.theunissen@gmail.com>
diff --git a/bundles/org.eclipse.platform.doc.user/reference/ref-7.htm b/bundles/org.eclipse.platform.doc.user/reference/ref-7.htm
index b368419..a569ca1 100644
--- a/bundles/org.eclipse.platform.doc.user/reference/ref-7.htm
+++ b/bundles/org.eclipse.platform.doc.user/reference/ref-7.htm
@@ -4,15 +4,15 @@
 <meta name="copyright" content="Copyright (c) IBM Corporation and others 2000, 2013. This page is made available under license. For full details see the LEGAL in the documentation book that contains this page."/>
 <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>
 <meta http-equiv="Content-Style-Type" content="text/css"/>
-<title>Accessibility preference page</title>
+<title>Accessibility preferences</title>
 <script language="JavaScript" src="PLUGINS_ROOT/org.eclipse.help/livehelp.js" type="text/javascript"></script>
 <link rel="STYLESHEET" href="../book.css" type="text/css"/>
 </head>
 <body bgcolor="#ffffff">
 
-<h1 class="Head">Accessibility preference page</h1>
+<h1 class="Head">Accessibility preferences</h1>
 
-<p>You can change the following preferences on the
+<p>The following preferences can be changed on the
   <a class="command-link" href='javascript:executeCommand("org.eclipse.ui.window.preferences(preferencePageId=org.eclipse.ui.editors.preferencePages.Accessibility)")'><img src="PLUGINS_ROOT/org.eclipse.help/command_link.svg" alt="command link"/><strong>General &gt; Editors &gt; Text Editors &gt; Accessibility</strong></a> preference page:
 </p>
 
@@ -37,15 +37,14 @@
 <td>On</td>
 </tr>
 <tr valign="top">
-<td><b>Use characters to show changes on line number bar</b></td>
-<td>Quick Diff shows the changes in a vertical ruler using colors. 
-Color-blind persons can enable this option to show differences with different characters 
-in the line number ruler.</td>
+<td><b>Use characters to show changes in vertical ruler</b></td>
+<td>Quick Diff shows line changes in the vertical ruler on the left hand side using colors. 
+Enable this option to show differences additionally with characters.</td>
 <td>Off</td>
 </tr>
 <tr valign="top">
 <td><b>Use saturated colors in overview ruler</b></td>
-<td>Uses saturated colors for annotations in the overview ruler.</td>
+<td>Uses saturated colors for annotations in the overview ruler on the right hand side.</td>
 <td>Off</td>
 </tr>
 </tbody>