docs(l10n): add 'Your Language' TOC link to all 5 locale READMEs

Mirror the new TOC entry added to the root README. Each locale uses a
short translation of 'Your Language' and points to the locale's own
'Use Your Preferred Language' heading slug.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: justinyoo

README.md

@@ -5,7 +5,7 @@
 [![Official Copilot CLI documentation](https://img.shields.io/badge/GitHub-CLI_Documentation-00a3ee?style=flat-square&logo=github)](https://docs.github.com/en/copilot/how-tos/copilot-cli) 
 [![Join AI Foundry Discord](https://img.shields.io/badge/Discord-AI_Community-blue?style=flat-square&logo=discord&color=5865f2&logoColor=fff)](https://aka.ms/foundry/discord)
 
-🎯 [What You'll Learn](#-what-youll-learn)   ✅ [Prerequisites](#-prerequisites)   🤖 [Copilot Family](#-understanding-the-github-copilot-family)   📚 [Course Structure](#-course-structure)   📋 [Command Reference](#-github-copilot-cli-command-reference)
+🎯 [What You'll Learn](#-what-youll-learn)   ✅ [Prerequisites](#-prerequisites)   🤖 [Copilot Family](#-understanding-the-github-copilot-family)   📚 [Course Structure](#-course-structure)   📋 [Command Reference](#-github-copilot-cli-command-reference)   🌐 [Your Language](#-use-your-preferred-language)
 
 # GitHub Copilot CLI for Beginners
 

localization/es-es/README.md

@@ -5,7 +5,7 @@
 [![Documentación oficial de Copilot CLI](https://img.shields.io/badge/GitHub-CLI_Documentation-00a3ee?style=flat-square&logo=github)](https://docs.github.com/en/copilot/how-tos/copilot-cli) 
 [![Únete a Discord de AI Foundry](https://img.shields.io/badge/Discord-AI_Community-blue?style=flat-square&logo=discord&color=5865f2&logoColor=fff)](https://aka.ms/foundry/discord)
 
-🎯 [Qué aprenderás](#-qué-aprenderás)   ✅ [Requisitos previos](#-requisitos-previos)   🤖 [Familia Copilot](#-entendiendo-la-familia-de-github-copilot)   📚 [Estructura del curso](#-estructura-del-curso)   📋 [Referencia de comandos](#-referencia-de-comandos-de-github-copilot-cli)
+🎯 [Qué aprenderás](#-qué-aprenderás)   ✅ [Requisitos previos](#-requisitos-previos)   🤖 [Familia Copilot](#-entendiendo-la-familia-de-github-copilot)   📚 [Estructura del curso](#-estructura-del-curso)   📋 [Referencia de comandos](#-referencia-de-comandos-de-github-copilot-cli)   🌐 [Tu idioma](#-usa-tu-idioma-preferido)
 
 # GitHub Copilot CLI para principiantes
 

localization/ja-jp/README.md

@@ -5,7 +5,7 @@
 [![Official Copilot CLI documentation](https://img.shields.io/badge/GitHub-CLI_Documentation-00a3ee?style=flat-square&logo=github)](https://docs.github.com/en/copilot/how-tos/copilot-cli) 
 [![Join AI Foundry Discord](https://img.shields.io/badge/Discord-AI_Community-blue?style=flat-square&logo=discord&color=5865f2&logoColor=fff)](https://aka.ms/foundry/discord)
 
-🎯 [学習内容](#-学習内容)   ✅ [前提条件](#-前提条件)   🤖 [Copilot ファミリー](#-github-copilot-ファミリーを理解する)   📚 [コース構成](#-コース構成)   📋 [コマンドリファレンス](#-github-copilot-cli-コマンドリファレンス)
+🎯 [学習内容](#-学習内容)   ✅ [前提条件](#-前提条件)   🤖 [Copilot ファミリー](#-github-copilot-ファミリーを理解する)   📚 [コース構成](#-コース構成)   📋 [コマンドリファレンス](#-github-copilot-cli-コマンドリファレンス)   🌐 [あなたの言語](#-お好みの言語で利用する)
 
 # GitHub Copilot CLI for Beginners
 

localization/ko-kr/README.md

@@ -5,7 +5,7 @@
 [![Official Copilot CLI documentation](https://img.shields.io/badge/GitHub-CLI_Documentation-00a3ee?style=flat-square&logo=github)](https://docs.github.com/en/copilot/how-tos/copilot-cli) 
 [![Join AI Foundry Discord](https://img.shields.io/badge/Discord-AI_Community-blue?style=flat-square&logo=discord&color=5865f2&logoColor=fff)](https://aka.ms/foundry/discord)
 
-🎯 [학습 목표](#-학습-목표)   ✅ [사전 요건](#-사전-요건)   🤖 [Copilot 제품군](#-github-copilot-제품군-이해하기)   📚 [강의 구성](#-강의-구성)   📋 [명령어 참조](#-github-copilot-cli-명령어-참조)
+🎯 [학습 목표](#-학습-목표)   ✅ [사전 요건](#-사전-요건)   🤖 [Copilot 제품군](#-github-copilot-제품군-이해하기)   📚 [강의 구성](#-강의-구성)   📋 [명령어 참조](#-github-copilot-cli-명령어-참조)   🌐 [내 언어](#-선호하는-언어로-보기)
 
 # GitHub Copilot CLI for Beginners
 

localization/pt-br/README.md

@@ -5,7 +5,7 @@
 [![Documentação oficial do Copilot CLI](https://img.shields.io/badge/GitHub-CLI_Documentation-00a3ee?style=flat-square&logo=github)](https://docs.github.com/en/copilot/how-tos/copilot-cli) 
 [![Entre na comunidade AI Foundry no Discord](https://img.shields.io/badge/Discord-AI_Community-blue?style=flat-square&logo=discord&color=5865f2&logoColor=fff)](https://aka.ms/foundry/discord)
 
-🎯 [O que você vai aprender](#-o-que-você-vai-aprender)   ✅ [Pré-requisitos](#-pré-requisitos)   🤖 [Família Copilot](#-entendendo-a-família-github-copilot)   📚 [Estrutura do curso](#-estrutura-do-curso)   📋 [Referência de comandos](#-referência-de-comandos-do-github-copilot-cli)
+🎯 [O que você vai aprender](#-o-que-você-vai-aprender)   ✅ [Pré-requisitos](#-pré-requisitos)   🤖 [Família Copilot](#-entendendo-a-família-github-copilot)   📚 [Estrutura do curso](#-estrutura-do-curso)   📋 [Referência de comandos](#-referência-de-comandos-do-github-copilot-cli)   🌐 [Seu idioma](#-use-seu-idioma-preferido)
 
 # GitHub Copilot CLI para Iniciantes
 

localization/zh-cn/README.md

@@ -5,7 +5,7 @@
 [![Official Copilot CLI documentation](https://img.shields.io/badge/GitHub-CLI_Documentation-00a3ee?style=flat-square&logo=github)](https://docs.github.com/en/copilot/how-tos/copilot-cli) 
 [![Join AI Foundry Discord](https://img.shields.io/badge/Discord-AI_Community-blue?style=flat-square&logo=discord&color=5865f2&logoColor=fff)](https://aka.ms/foundry/discord)
 
-🎯 [你将学到什么](#-你将学到什么)   ✅ [先决条件](#-先决条件)   🤖 [Copilot 家族](#-了解-github-copilot-家族)   📚 [课程结构](#-课程结构)   📋 [命令参考](#-github-copilot-cli-命令参考)
+🎯 [你将学到什么](#-你将学到什么)   ✅ [先决条件](#-先决条件)   🤖 [Copilot 家族](#-了解-github-copilot-家族)   📚 [课程结构](#-课程结构)   📋 [命令参考](#-github-copilot-cli-命令参考)   🌐 [你的语言](#-使用你的首选语言)
 
 # 面向初学者的 GitHub Copilot CLI