Bug 15926: Add help for item search fields admin

This patch will add the missing help file to the item
search fields admin page.

To test:
* Go to administration > Item search fields
* Click Help
* Confirm help is there and correct.

Signed-off-by: Marc Véron <veron@veron.ch>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

Signed-off-by: Brendan Gallagher brendan@bywatersolutions.com
(cherry picked from commit ac3e13248a)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>
(cherry picked from commit e9b25fb1a1)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>

koha-tmpl/intranet-tmpl/prog/en/modules/help/admin/items_search_fields.tt

@@ -0,0 +1,25 @@
+[% INCLUDE 'help-top.inc' %]
+
+<h1>Item search fields help</h1>
+
+<p>From here you can add custom search fields to the item search option in the staff client.</p>
+
+<p>To add a new search term simply fill in the 'Add a new field' area:</p>
+
+<ul>
+<li>Name is a field for you to identify the search term</li>
+
+<li>Label is what will appear on the item search page</li>
+
+<li>MARC field allows you to pick which field you'd like to search in</li>
+
+<li>MARC subfield is the subfield you'd like to search in</li>
+
+<li>Authorised values category can be used to turn this search field in to a pull down instead of a free text field</li>
+</ul>
+
+<p>Once your new field is added it will be visible at the top of this page and on the item search page</p>
+
+<p><strong>See the full documentation for Item search fields in the <a href="http://manual.koha-community.org/[% helpVersion %]/en/catadmin.html#itemsearchadmin">manual</a> (online).</strong></p>
+
+[% INCLUDE 'help-bottom.inc' %]