Fixed crucial typos

There were several attributesin which the 'height' speelings were wrong, moreover some attributes of img tag were written twice

Author: Ayanprogrammer11

starter/03-CSS-Fundamentals/index.html

@@ -118,13 +118,13 @@ <h4>Related posts</h4>
             src="img/related-1.jpg"
             alt="Person programming"
             width="75"
-            width="75"
+            height="75"
           />
           <a href="#">How to Learn Web Development</a>
           <p>By Jonas Schmedtmann</p>
         </li>
         <li>
-          <img src="img/related-2.jpg" alt="Lightning" width="75" heigth="75" />
+          <img src="img/related-2.jpg" alt="Lightning" width="75" height="75" />
           <a href="#">The Unknown Powers of CSS</a>
           <p>By Jim Dillon</p>
         </li>