Added description meta tag

includes/header.php

@@ -5,6 +5,7 @@
   <!-- Required meta tags -->
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
+  <meta name="description" content="<?php echo htmlentities(DESC); ?>">
   <link rel="stylesheet" href="./css/darkmode.css" />
   <link rel="stylesheet" href="./css/style.css" />
   <!-- Bootstrap CSS -->

index.php

@@ -2,6 +2,7 @@
 
 define('PAGE_TITLE', 'Home');
 define('ACTIVE_MENUITEM', 'home');
+define('DESC', 'Welcome to Pfostendynamics! Here you can find all our wonderful projects, from bobbycars to helicopters! "Change you idea of what idiots can do');
 
 require('includes/header.php');
 ?>