Additional fix.

TimShererWithAquent · TimShererWithAquent · commit 503452ec0970 · 2020-11-18T16:19:23.000-08:00
diff --git a/docs/extensibility/button-element.md b/docs/extensibility/button-element.md
@@ -1,6 +1,6 @@
 ---
 title: Button Element | Microsoft Docs
-description: The Button element defines an element that the user can interact with. Buttons can be different kinds: Button, MenuButton, and SplitDropDown.
+description: "The Button element defines an element that the user can interact with. Buttons can be different kinds: Button, MenuButton, and SplitDropDown."
 ms.custom: SEO-VS-2020
 ms.date: 11/04/2016
 ms.topic: conceptual
