docs: misc changes to overview and add known issues link to sdk tools notes

Change-Id: Ia1c6b7947eb861c5bf32107c3efed3279e890b8e
diff --git a/docs/html/resources/resources-data.js b/docs/html/resources/resources-data.js
index ddbc022..310310e 100644
--- a/docs/html/resources/resources-data.js
+++ b/docs/html/resources/resources-data.js
@@ -428,7 +428,7 @@
     }
   },
   {
-    tags: ['sample', 'layout', 'ui'],
+    tags: ['sample', 'layout', 'ui', 'updated'],
     path: 'samples/ApiDemos/index.html',
     title: {
       en: 'API Demos'