fixed capitalisation of jQuery

Author: RabeaGleissner

index.html

@@ -46,7 +46,7 @@ <h2>JavaScript</h2>
           <ul>
             <li><a href="js/lesson1/tutorial.html">Lesson 1 - Introduction to JavaScript</a></li>
             <li><a href="js/lesson2/tutorial.html">Lesson 2 - Beginning JavaScript</a></li>
-            <li><a href="js/lesson3/tutorial.html">Lesson 3 - Introduction to JQuery</a></li>
+            <li><a href="js/lesson3/tutorial.html">Lesson 3 - Introduction to jQuery</a></li>
             <li><a href="js/lesson4/tutorial.html">Lesson 4 - HTTP Requests, AJAX and APIs</a></li>
             <li><a href="js/lesson5/tutorial.html">Lesson 5 - HTTP Requests, AJAX and APIs (part 2)</a></li>
             <li><a href="js/lesson6/tutorial.html">Lesson 6 - Drawing in Canvas</a></li>