Update examples.html

Updated wording for link

Author: shaggygi

examples.html

@@ -34,5 +34,5 @@ <h2>Walkthroughs</h2>
 		<li><a href="example1.html">a simple example</a> which covers a classical product catalog description.
 		<li><a href="example2.html">a more advanced example</a>, using JSON Schema to describe filesystem entries in a Unix-like /etc/fstab file.
 	</ul>
-	<p>The <a href="http://www.stsci.edu/">Space Telescope Science Institute</a> has also published an <a href="http://spacetelescope.github.io/understanding-json-schema/">guide aimed at schema authors</a>.
+	<p>The <a href="http://www.stsci.edu/">Space Telescope Science Institute</a> has also published a <a href="http://spacetelescope.github.io/understanding-json-schema/">guide aimed at schema authors</a>.
 </div>