Documents and Documentation (beta 1) (#23)

- Change to SQLite document store
- Complete documentation on usage of Feed Reader Central
- Update INSTALLING.md for new installation procedures

Reviewed-on: #23

src/public/docs/security-modes.php

@@ -1,8 +1,8 @@
-<?php
+<?php declare(strict_types=1);
+
 include '../../start.php';
 
-$db = Data::getConnection();
-Security::verifyUser($db, redirectIfAnonymous: false);
+FeedReaderCentral\Security::verifyUser(redirectIfAnonymous: false);
 
 page_head('Security Modes | Documentation'); ?>
 <h1>Configuring Security Modes</h1>
@@ -59,4 +59,3 @@ page_head('Security Modes | Documentation'); ?>
     <p><code>php-cli util/user.php reset-single-password</code>
 </article><?php
 page_foot();
-$db->close();