docs: Fixed unclosed anchor tag for M Program Overview.

Change-Id: I632e999c0d32acbf5c5fce5377603069fea312f0
diff --git a/docs/html/preview/overview.jd b/docs/html/preview/overview.jd
index 1e81456..c486b1c 100644
--- a/docs/html/preview/overview.jd
+++ b/docs/html/preview/overview.jd
@@ -164,7 +164,7 @@
   </li>
 
   <li>
-    <strong><a href="{@docRoot}preview/download.html">Preview&nbsp;3</strong> (final APIs and official Android 6.0 SDK, available).
+    <strong><a href="{@docRoot}preview/download.html">Preview&nbsp;3</a></strong> (final APIs and official Android 6.0 SDK, available).
   </li>
 </ul>
 
@@ -338,10 +338,10 @@
 
   <p>Before releasing your app targeting API level 23, we strongly
   recommend distributing it to a group of testers through the new <a
-  href="http://android-developers.blogspot.com/2015/07/iterate-faster-on-google-play-with.html"> 
+  href="http://android-developers.blogspot.com/2015/07/iterate-faster-on-google-play-with.html">
   beta testing features available in the Google Play Developer Console. See the
   <a href="https://support.google.com/googleplay/android-developer/answer/3131213">Help
-  Center article</a> for more information. 
+  Center article</a> for more information.
 </p>
 
 <h2 id="get_started">