Add table to doc util script

- Remove db parameter from several places
- Add constructors for document types

src/public/docs/feeds.php

@@ -1,12 +1,8 @@
 <?php
 
-use FeedReaderCentral\Data;
-use FeedReaderCentral\Security;
-
 include '../../start.php';
 
-$db = Data::getConnection();
-Security::verifyUser($db, redirectIfAnonymous: false);
+FeedReaderCentral\Security::verifyUser(redirectIfAnonymous: false);
 
 page_head('Feeds | Documentation'); ?>
 <h1>Feeds</h1>
@@ -75,4 +71,3 @@ php-cli util/refresh.php all</pre>
         add <code>nice -n 1</code> (with a trailing space) before the path to the script.
 </article><?php
 page_foot();
-$db->close();