chore: update review page with reduced content and new exercise (#86)

Author: FidelusAleksander

.github/steps/x-review.md

@@ -12,20 +12,8 @@ Here's a recap of your accomplishments:
 - Learned how to request Copilot to review your code.
 
 ### What's next?
-
-- Continue working on the project
-  - Use Copilot to add a function for students to unregister from an activity.
-  - Use Copilot to fix issues found during a pull request review.
-  - Use Copilot to generate tests and documentation.
-  - Use Copilot with different models.
 - Check out the other [GitHub Skills exercises](https://learn.github.com/skills).
-  - Learn how to [Integrate MCP with Copilot](https://github.com/skills/integrate-mcp-with-copilot)
+  - Learn how to [Integrate MCP with Copilot](https://github.com/skills/integrate-mcp-with-copilot) to give Copilot extra capabilities!
+  - Tailor Copilot to your project needs in [Customize your GitHub Copilot Experience](https://github.com/skills/customize-your-github-copilot-experience)
   - Tackle legacy COBOL code in [Modernize Your Legacy Code with GitHub Copilot](https://github.com/skills/modernize-your-legacy-code-with-github-copilot) exercise
   - Try GitHub Copilot Coding Agent in the [Expand your team with Copilot](https://github.com/skills/expand-your-team-with-copilot) exercise
-
-Check out these resources to learn more about GitHub Copilot :
-
-- Are you not getting the responses you want from Copilot? [Learn prompt engineering](https://docs.github.com/en/copilot/using-github-copilot/copilot-chat/prompt-engineering-for-copilot-chat)
-- Explore GitHub Copilot [Slash Commands](https://docs.github.com/en/copilot/using-github-copilot/copilot-chat/github-copilot-chat-cheat-sheet?tool=vscode).
-- See what other features are available [GitHub Copilot Features](https://docs.github.com/en/copilot/about-github-copilot/github-copilot-features).
-- Take a look at the [GitHub Copilot Documentation](https://docs.github.com/en/copilot).