added text for explainging access start/end fields

htdocs/lang/en.utf8/view.php

@@ -132,7 +132,7 @@ $string['deleteviewconfirm'] = 'Do you really want to delete this view? It canno
 
 $string['editaccesspagedescription'] = '<p>You can control who can see your view, and when they can do so. By default, only you can see your views.</p>
     <p>You can grant access to your view to your friends, all logged in users, or only to the certain users and groups you choose.</p>
-    <p>All dates are optional. If you wish, you can use them to restrict the time in which people can see your view.</p>';
+    <p>All dates are optional. If you wish, you can use them to restrict the time in which people can see your view. Access start and end further restrict when peope can see your view.</p>';
 $string['emptylabel'] = 'Click here to enter text for this label';
 $string['empty_block'] = 'Select an artefact from the tree on the left to place here';