add viewport width override to each landing page and fix link on homepage

Change-Id: I54cfd2e5a0f127d26644e126d41c5044729af9c5
diff --git a/docs/html/develop/index.jd b/docs/html/develop/index.jd
index 3f88b9d..083b428 100644
--- a/docs/html/develop/index.jd
+++ b/docs/html/develop/index.jd
@@ -1,5 +1,6 @@
 fullpage=true
 page.title=Develop
+page.viewport-width=970
 header.hide=1
 carousel=1
 tabbedList=1