Doc change: adjust distribute and preview card grids and styles.

Change-Id: I0b0fd5688c5efdb881d677173afdfb5f63d2fa73
diff --git a/docs/html/preview/api-overview.jd b/docs/html/preview/api-overview.jd
index b207e35..5ab4b89 100644
--- a/docs/html/preview/api-overview.jd
+++ b/docs/html/preview/api-overview.jd
@@ -1,6 +1,7 @@
 page.title=API Overview
 page.keywords=preview,sdk,compatibility
-sdk.platform.apiLevel=23
+sdk.platform.apiLevel=22-mnc
+page.image=images/cards/card-key-changes_16-9_2x.png
 @jd:body