Add missing GitHub Copilot sections to README Table of Contents

[Copilot]

The README contains GitHub Copilot CLI Configuration and GitHub Copilot SDK Configuration sections that were missing from the Table of Contents, making them difficult to discover.

Changes

• Added TOC entries for both GitHub Copilot sections under Package Manager
• Positioned after Docker, before Remote MCP Server sections
• Anchor links match existing section headings at lines 341 and 392

- [Package Manager](#package-manager)
    - [NuGet](#nuget)
    - [NPM](#npm)
    - [Docker](#docker)
+   - [GitHub Copilot CLI Configuration](#github-copilot-cli-configuration)
+   - [GitHub Copilot SDK Configuration](#github-copilot-sdk-configuration)
- [Remote MCP Server (preview)](#remote-mcp-server-preview)

Original prompt

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This section details on the original issue you should resolve

<issue_title>Update to add missing entries to the table of contents in ReadMe</issue_title>
<issue_description>Update the Readme at: https://github.com/microsoft/mcp/blob/main/servers/Azure.Mcp.Server/README.md
to add entries in the Table of Contents for the following sections:

GitHub Copilot CLI Configuration
GitHub Copilot SDK Configuration</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Update to add missing entries to the table of contents in ReadMe #1585

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💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.