docs: fix sticky header hiding RenderScript reference headings

b/20637508

Change-Id: I64996db4fc986cbe0f4506b5524a708a9e14cbc8
diff --git a/tools/droiddoc/templates-sdk/assets/css/default.css b/tools/droiddoc/templates-sdk/assets/css/default.css
index 2e01559..cc4dce7 100644
--- a/tools/droiddoc/templates-sdk/assets/css/default.css
+++ b/tools/droiddoc/templates-sdk/assets/css/default.css
@@ -4228,7 +4228,8 @@
 }
 
 /* offset the <a name=""> tags to account for sticky nav */
-body.reference a[name] {
+body.reference a[name],
+div.renderscript a[name] {
   visibility: hidden;
   display: block;
   position: relative;