Update getting-started.html

docs/getting-started.html

@@ -146,7 +146,7 @@
 			</p>
 			
 			<h4 class="section-h4">Hello World</h4>
-			<p>A simple Hello World! code in Gravity looks like</p>
+			<p>A simple <strong>Hello World</strong> code in Gravity looks like</p>
 			<pre><code>
 			    func main() {
 			        System.print("Hello World!")