Docs: Add CTS 6.0, 5.1, and 5.0 to home page

Bug: 26920072
Change-Id: Id99a25701e0823ee5a4c776f1a9cd29aefdca605
diff --git a/src/index.jd b/src/index.jd
index 5c2dd75..efcfece 100644
--- a/src/index.jd
+++ b/src/index.jd
@@ -43,6 +43,12 @@
   <div class="landing-docs">
     <div class="col-8">
     <h3>What's New</h3>
+<a href="{@docRoot}compatibility/downloads.html">
+        <h4>Android 6.0, 5.1, and 5.0 CTS Downloads</h4></a>
+        <p>Android 6.0 R3, 5.1 R5, and 5.0 R4 Compatibility Test Suite (CTS)
+        and CTS Verifier are available for <strong><a
+        href="{@docRoot}compatibility/downloads.html">Download</a></strong>.</p>
+
 <a href="{@docRoot}source/initializing.html">
         <h4>JDK 8 for Latest Platform Development</h4></a>
         <p>The master branch of Android now requires JDK 8 to build. See <strong><a
@@ -85,11 +91,6 @@
         have been published for Lollipop on Nexus 6, Nexus 7 (deb), Nexus 9
         (volantisg), Nexus 10 and Marshmallow on Nexus 5, Nexus 5X, Nexus 6, Nexus 6P,
         Nexus 7 (flo/deb), Nexus 9 (volantis/volantisg), and Nexus Player.</p>
-
-<a href="{@docRoot}compatibility/downloads.html">
-        <h4>6.0 CTS Downloads</h4></a>
-        <p>Android 6.0 R2 Compatibility Test Suite (CTS) and CTS Verifier are available for <strong><a
-        href="{@docRoot}compatibility/downloads.html#android-60">Download</a></strong>.</p>
     </div>
 
     <div class="col-8">