Merge pull request google#448 from coliff/patch-1

update jQuery version in example

Author: tonyruscoe

htmlcssguide.html

@@ -32,14 +32,14 @@ <h4 id="Protocol">2.1.1 Protocol</h4>
 over HTTPS.</p>
 
 <pre><code class="language-html prettyprint badcode">&lt;!-- Not recommended: omits the protocol --&gt;
-&lt;script src="//ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"&gt;&lt;/script&gt;
+&lt;script src="//ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"&gt;&lt;/script&gt;
 
 &lt;!-- Not recommended: uses HTTP --&gt;
-&lt;script src="http://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"&gt;&lt;/script&gt;
+&lt;script src="http://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"&gt;&lt;/script&gt;
 </code></pre>
 
 <pre><code class="language-html prettyprint">&lt;!-- Recommended --&gt;
-&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"&gt;&lt;/script&gt;
+&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"&gt;&lt;/script&gt;
 </code></pre>
 
 <pre><code class="language-css prettyprint badcode">/* Not recommended: omits the protocol */