Update creating-custom-editors-and-designers.md

TimShererWithAquent · web-flow · commit 4f3be3d95243 · 2020-11-19T14:45:33.000-08:00
Add quote to fix warning.
diff --git a/docs/extensibility/creating-custom-editors-and-designers.md b/docs/extensibility/creating-custom-editors-and-designers.md
@@ -1,6 +1,6 @@
 ---
 title: Creating Custom Editors and Designers | Microsoft Docs
-description: Learn about the different types of editors that can by hosted by the Visual Studio IDE: the core editor, custom editors, external editors, and designers."
+description: "Learn about the different types of editors that can by hosted by the Visual Studio IDE: the core editor, custom editors, external editors, and designers."
 ms.custom: SEO-VS-2020
 ms.date: 11/04/2016
 ms.topic: how-to
