Need to add link to jdk.net apidoc in networking guide (for JDK 9 and 8u20)

Suggested diff

diff --git a/docs/technotes/guides/net/index.html b/docs/technotes/guides/net/index.html
--- a/docs/technotes/guides/net/index.html
+++ b/docs/technotes/guides/net/index.html
@@ -30,8 +30,8 @@
 <li><a href="../../../api/javax/net/ssl/package-summary.html">javax.net.ssl</a>
 </li>
 <li><a href="../../../jre/api/net/httpserver/spec/com/sun/net/httpserver/package-summary.html">com.sun.net.httpserver Package</a></li>
-<li><a href="../../../jre/api/net/httpserver/spec/com/sun/net/httpserver/spi/package-summary.html">
-com.sun.net.httpserver.spi Package</a></li>
+<li><a href="../../../jre/api/net/httpserver/spec/com/sun/net/httpserver/spi/package-summary.html">com.sun.net.httpserver.spi Package</a></li>
+<li><a href="../../../jre/api/net/socketoptions/spec/jdk/net/package-summary.html">jdk.net Package</a></li>
 </ul>
 <!-- ****************************************************** -->
 <h2>API Enhancements</h2>