Basic Concepts II updated

ToDo added

html/OnlineCompiler.html

@@ -4,7 +4,6 @@
 <font size="6">
 <br>
 <br>
-<br>
 <a href="https://wandbox.org/"> Wandbox </a> <font size="5">(support different compilers)</font>
 <br>
 <br>
@@ -22,6 +21,9 @@
 <br>
 <br>
 <a href="https://aws.amazon.com/it/cloud9/">  Cloud9 </a> (online virtual machine)
+<br>
+<br>
+<br>
 </font>
 </body>
 </html>