Remove the optionnal parameter for hello-world

doc/getting_started.html

@@ -113,10 +113,10 @@ Drivers" target="_blank">FTDI homepage</a>.</li>
     <p>Download and install <a class="download" href="http://mspdebug.sourceforge.net/download.html" title="Debugging and programming tool for MSP430 MCUs" target="_blank">MSPDebug</a> according to the information provided on the website. You can also use MSPDebug for debugging.</p>
     <h3>For redbee-econotag</h3>
     <p>Folow the instructions for <a href="http://mc1322x.devl.org/libmc1322x.html" title="LIBMC1322X"target="_blank">Getting Started with MC1322x</a>.
-	<h3>For STM32F4DISCOVERY</h3>
-<p class="todo">TODO</p>
+<!--	<h3>For STM32F4DISCOVERY</h3>
+<p class="todo">TODO</p>-->
 
-	<h2 id="hello"><em>Optional:</em> Hello World!</h2>
+	<h2 id="hello"><em>First test:</em> Hello World!</h2>
 	If you have obtained a copy of the projects repository, you can build the
 famous <em>Hello World</em> application for RIOT.
 <ul>