Replaced cloud9Ide lesson with a link to their docs

Author: eddiejaoude

index.html

@@ -84,9 +84,10 @@ <h2>Python</h2>
 
           <h2>PHP</h2>
 
+          <p class="lead">If you are just getting started quickly and easily with PHP, we recommend using <a href="https://docs.c9.io/docs/getting-started">cloud9Ide</a>, as setting up your local environment can be time consuming.</p>
+
           <ul>
-            <li><a href="php/lesson1/tutorial.html">Lesson 1 - Online PHP Environment in Minutes</a></li>
-            <li><a href="php/lesson2/tutorial.html">Lesson 2 - Introduction to PHP</a></li>
+            <li><a href="php/lesson1/tutorial.html">Lesson 1 - Introduction to PHP</a></li>
           </ul>
           </section>
           <footer>