Update context exercise to clarify GitHub Copilot instructions and enhance resource links

Author: GeekTrainer

content/guided-workshop/exercises/5-context.md

@@ -8,7 +8,7 @@ Before adding new functionality to the website, you want to explore the existing
 
 ## Getting started with GitHub Copilot
 
-GitHub Copilot is a cloud-based service offered for both individuals and businesses. As an individual, you can [sign up for a free trial](https://github.com/github-copilot/signup) of the service. After enrolling you will typically install the extension for your IDE, which is available for [Visual Studio](https://marketplace.visualstudio.com/items?itemName=GitHub.copilotvs), [Visual Studio Code](https://marketplace.visualstudio.com/items?itemName=GitHub.copilot), [NeoVIM](https://github.com/github/copilot.vim#getting-started) and the [JetBrains IDEs](https://plugins.jetbrains.com/plugin/17718-github-copilot). Because we'll be using the [codespace](./3-codespaces.md) you defined in the previous exercise, you won't need to manually install the extension - you did that when you configured the dev container!
+GitHub Copilot is a cloud-based service offered for both individuals and businesses. As an individual, you can [sign up for a free account](https://github.com/github-copilot/signup) of the service. After enrolling you will typically install the extension for your IDE, which is available for [Visual Studio](https://marketplace.visualstudio.com/items?itemName=GitHub.copilotvs), [Visual Studio Code](https://marketplace.visualstudio.com/items?itemName=GitHub.copilot), [NeoVIM](https://github.com/github/copilot.vim#getting-started) and the [JetBrains IDEs](https://plugins.jetbrains.com/plugin/17718-github-copilot). Because we'll be using the [codespace](./3-codespaces.md) you defined in the previous exercise, you won't need to manually install the extension - you did that when you configured the dev container!
 
 1. If you don't already have access to GitHub Copilot, [sign up for a free trial](https://github.com/github-copilot/signup).
 2. In the [previous exercise](./3-codespaces.md) you configured your [devcontainer](https://docs.github.com/en/codespaces/setting-up-your-project-for-codespaces/adding-a-dev-container-configuration/introduction-to-dev-containers) to automatically install the extension for GitHub Copilot, so you're all set and ready to go!
@@ -20,7 +20,7 @@ GitHub Copilot Chat has a set of available chat participants and extensions avai
 `@workspace` creates an index of your project and allows you to ask questions about what you're currently working on, to find resources inside the project, or add it to the context. It's best to use this when the entirety of your project should be considered or you're not entirely sure where you should start looking. In our current scenario, since we want to ask questions about our project, `@workspace` is the perfect tool for the job.
 
 > [!NOTE]
-> This exercise doesn't provide specific prompts to type, as part of the learning experience is to discover how to interact with Copilot. Feel free to talk in natural language, describing what you're looking for or hoping to accomplish.
+> This exercise doesn't provide specific prompts to type, as part of the learning experience is to discover how to interact with Copilot. Feel free to talk in natural language, describing what you're looking for or need to accomplish.
 
 1. Return to your codespace, or reopen it by navigating to your repository and selecting **Code** > **Codespaces** and the name of your codespace.
 2. Open GitHub Copilot Chat.
@@ -97,7 +97,8 @@ Congratulations! You've explored context in GitHub Copilot, which is key to gene
 
 ## Resources
 
-- [GitHub Copilot](https://github.com/features/copilot)
-- [How to use GitHub Copilot: Prompts, tips, and use cases](https://github.blog/2023-06-20-how-to-write-better-prompts-for-github-copilot/)
 - [Getting started with GitHub Copilot](https://docs.github.com/en/copilot/getting-started-with-github-copilot)
-- [GitHub Skills - Code with GitHub Copilot](https://github.com/skills/copilot-codespaces-vscode)
+- [Adding repository custom instructions for GitHub Copilot](https://docs.github.com/en/copilot/customizing-copilot/adding-repository-custom-instructions-for-github-copilot)
+- [Adding personal custom instructions for GitHub Copilot](https://docs.github.com/en/copilot/customizing-copilot/adding-personal-custom-instructions-for-github-copilot)
+- [Copilot Chat cookbook](https://docs.github.com/en/copilot/copilot-chat-cookbook)
+- [Use Copilot Chat in VS Code](https://code.visualstudio.com/docs/copilot/copilot-chat)