Update multiple-sidebars.mdx

Author: ajay-dhangar

docs/guides/docs/sidebar/multiple-sidebars.mdx

@@ -1,9 +1,8 @@
 ---
+title: Using multiple sidebars
 slug: /sidebar/multiple-sidebars
 ---
 
-# Using multiple sidebars
-
 You can create **different sidebars** for separate sets of Markdown files and display each one depending on the current page.
 
 :::tip
@@ -167,4 +166,4 @@ In this setup:
 * Sidebar association will show **apiSidebar** when `commonDoc` is opened.
 
 Think of `ref` as a **pure shortcut**:
-it creates a link without affecting navigation or pagination logic.
+it creates a link without affecting navigation or pagination logic.