fix: Update Table of Contents formatting for consistency

Author: brunoborges

src/site/markdown/advanced.md

@@ -6,32 +6,32 @@ This guide covers advanced scenarios for extending and customizing your Copilot
 
 ## Table of Contents
 
-- [Custom Tools](#custom-tools)
-- [System Messages](#system-messages)
-  - [Adding Rules](#adding-rules)
-  - [Full Control](#full-control)
-- [File Attachments](#file-attachments)
-- [Bring Your Own Key (BYOK)](#bring-your-own-key-byok)
-- [Infinite Sessions](#infinite-sessions)
-  - [Compaction Events](#compaction-events)
-- [MCP Servers](#mcp-servers)
-- [Skills Configuration](#skills-configuration)
-  - [Loading Skills](#loading-skills)
-  - [Disabling Skills](#disabling-skills)
-- [Custom Configuration Directory](#custom-configuration-directory)
-- [User Input Handling](#user-input-handling)
-- [Permission Handling](#permission-handling)
-- [Session Hooks](#session-hooks)
-- [Manual Server Control](#manual-server-control)
-- [Session Lifecycle Events](#session-lifecycle-events)
-  - [Subscribing to All Lifecycle Events](#subscribing-to-all-lifecycle-events)
-  - [Subscribing to Specific Event Types](#subscribing-to-specific-event-types)
-- [Foreground Session Control (TUI+Server Mode)](#foreground-session-control-tuiserver-mode)
-  - [Getting the Foreground Session](#getting-the-foreground-session)
-  - [Setting the Foreground Session](#setting-the-foreground-session)
-- [Error Handling](#error-handling)
-  - [Event Handler Exceptions](#event-handler-exceptions)
-  - [Custom Event Error Handler](#custom-event-error-handler)
+- [Custom Tools](#Custom_Tools)
+- [System Messages](#System_Messages)
+  - [Adding Rules](#Adding_Rules)
+  - [Full Control](#Full_Control)
+- [File Attachments](#File_Attachments)
+- [Bring Your Own Key (BYOK)](#Bring_Your_Own_Key_BYOK)
+- [Infinite Sessions](#Infinite_Sessions)
+  - [Compaction Events](#Compaction_Events)
+- [MCP Servers](#MCP_Servers)
+- [Skills Configuration](#Skills_Configuration)
+  - [Loading Skills](#Loading_Skills)
+  - [Disabling Skills](#Disabling_Skills)
+- [Custom Configuration Directory](#Custom_Configuration_Directory)
+- [User Input Handling](#User_Input_Handling)
+- [Permission Handling](#Permission_Handling)
+- [Session Hooks](#Session_Hooks)
+- [Manual Server Control](#Manual_Server_Control)
+- [Session Lifecycle Events](#Session_Lifecycle_Events)
+  - [Subscribing to All Lifecycle Events](#Subscribing_to_All_Lifecycle_Events)
+  - [Subscribing to Specific Event Types](#Subscribing_to_Specific_Event_Types)
+- [Foreground Session Control (TUI+Server Mode)](#Foreground_Session_Control_TUIServer_Mode)
+  - [Getting the Foreground Session](#Getting_the_Foreground_Session)
+  - [Setting the Foreground Session](#Setting_the_Foreground_Session)
+- [Error Handling](#Error_Handling)
+  - [Event Handler Exceptions](#Event_Handler_Exceptions)
+  - [Custom Event Error Handler](#Custom_Event_Error_Handler)
 
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