[evolution] Move single sentence how to enable search folders into main page

[Andre Klapper <aklapper src gnome org>]

commit 2997f6a6e70b19107a77c4639d0063c8148aeee2
Author: Andre Klapper <a9016009 gmx de>
Date:   Sat Apr 8 17:08:41 2017 +0200

    Move single sentence how to enable search folders into main page

 help/C/mail-search-folders-enable.page |   27 ---------------------------
 help/C/mail-search-folders.page        |    4 +++-
 2 files changed, 3 insertions(+), 28 deletions(-)
---
diff --git a/help/C/mail-search-folders.page b/help/C/mail-search-folders.page
index 1ad72c2..876a6ee 100644
--- a/help/C/mail-search-folders.page
+++ b/help/C/mail-search-folders.page
@@ -6,7 +6,7 @@
 
     <link type="guide" xref="mail-organizing#advanced"/>
 
-    <revision pkgversion="3.0.2" version="0.3" date="2011-07-30" status="final"/>
+    <revision pkgversion="3.24.0" version="0.4" date="2017-04-08" status="final"/>
     <credit type="author">
       <name its:translate="no">Andre Klapper</name>
       <email its:translate="no">ak-47 gmx net</email>
@@ -25,6 +25,8 @@
 
 <p>A search folder looks like a <link xref="mail-folders">folder</link>, it acts like a <link 
xref="mail-searching">search</link>, and you set it up like a <link xref="mail-filters">filter</link>. While 
a conventional folder actually contains messages, a search folder is a view of messages that might be in 
several different folders. The messages it contains are determined on the fly using a set of criteria that 
you have chosen when setting up the search folder.</p>
 
+<note style="tip"><p>In the unlikely case that there is no <gui>Search folders</gui> top-level node 
displayed at the bottom of the <link xref="intro-main-window#e-mail">mail folder list</link> you have to 
enable <guiseq><gui>Edit</gui><gui>Preferences</gui><gui>Mail Accounts</gui><gui>Search 
Folders</gui></guiseq>.</p></note>
+
 <p><app>Evolution</app> automatically updates the search folder contents when new messages are received or 
message are deleted.</p>
 
 <p>The <gui>Unmatched</gui> search folder is the opposite of other search folders: it displays all messages 
that do not appear in other search folders.</p>