Restructure to comply with specified structure

about.html

@@ -5,7 +5,7 @@
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>About</title>
-  <link rel="shortcut icon" href="assets/favicon.svg" type="image/svg+xml">
+  <link rel="shortcut icon" href="img/favicon.svg" type="image/svg+xml">
   <!-- Royalty free icon, source: https://pixabay.com/vectors/flat-design-symbol-icon-www-2126879/ -->
 </head>
 
@@ -19,7 +19,7 @@
       <h2>This is me</h2>
     </header>
 
-    <img src="./assets/html_joke.jpg" alt="An html joke">
+    <img src="./img/html_joke.jpg" alt="An html joke">
     <!-- Source: http://funnygeekjokes.blogspot.com/2013/02/how-to-tell-html-from-html5-joke.html -->
 
     <p>