implemented database, article cards, and parsing from markdown.

functions/init.php

@@ -0,0 +1,11 @@
+<?php
+
+// Initialize Composer.
+require_once 'vendor/autoload.php';
+
+// Load environment variables.
+$dotenv = Dotenv\Dotenv::createImmutable(__DIR__ . '/../');
+$dotenv->safeLoad();
+
+// Set SESSION variable.
+$_SESSION['initialized'] = true;