add descirption

packages/sdk-components-react/src/head-slot.template.tsx

@@ -2,7 +2,8 @@ import { type TemplateMeta, $ } from "@webstudio-is/template";
 
 export const meta: TemplateMeta = {
   category: "general",
-  description: "Head",
+  description:
+    "The Head Slot component lets you customize page-specific head elements (like canonical URLs), which merge with your site's global head settings, with Head Slot definitions taking priority over Page Settings. For site-wide head changes, use Project Settings instead.",
   order: 6,
   template: (
     <$.HeadSlot>