fix: fix the header typo

Author: MatthiasKuehne

src/main/resources/static/index.html

@@ -13,12 +13,12 @@
     <img id="ebcont-logo" src="images/ebcont-base-white.png" />
 </div>
 
-<h1>GitHub Unleashed: <span class="fixme">Hands-off</span> and Best Practices</h1>
+<h1>GitHub Unleashed: <span class="fixme">Hands-on</span> and Best Practices</h1>
 
 <div id="mainsec">
     <p>Get your greeting <a href="/greeting">here</a></p>
     <!-- feature to add: <p>Get your greeting <a href="/greeting?name=Octocat">here</a></p> -->
 </div>
 
 </body>
-</html>
+</html>