docs: add maps v2 announcement

Change-Id: Ibf9b7ac02ffc8f70b48bcede4df929ec089108c5
diff --git a/docs/html/index.jd b/docs/html/index.jd
index 97f12b3..e91b68c 100644
--- a/docs/html/index.jd
+++ b/docs/html/index.jd
@@ -20,7 +20,7 @@
                     <h1>Android 4.2 Jelly Bean!</h1>
                     <p>The latest version of Jelly Bean is here, with performance optimizations, a refreshed UI, and great new features for developers. </p>
                     <p>Android 4.2 includes APIs for developing lock sceen widgets and Daydream screensavers, using external displays, creating RTL layouts, building flexible UI with nested Fragments, and much more.</p>
-                    <p><a href="/about/versions/jelly-bean.html" class="button">Learn More</a></p>
+                    <p><a href="{@docRoot}about/versions/jelly-bean.html" class="button">Learn More</a></p>
                     </div>
                 </li>
                 <li class="item carousel-home">
@@ -78,4 +78,3 @@
     </div>
     <!-- /Section links -->
 </div>     
-