Copilot CLI for Beginners website experience (#1078)

* Initial pass at bringing a website experience to copilot cli for beginners

* dropped the number from the heading

* Adding codeowner

* agentic workflow to keep the docs in sync

* Making it more aligned with the source material

* Removing the badges and TOC since we get some of that from astro

* updating the agentic workflow

* Adding learning hub to llms.txt

* Removing nav that comes from the source markdown files

website/src/content/docs/learning-hub/index.md

@@ -1,6 +1,6 @@
 ---
 title: Learning Hub
-description: 'Curated articles, walkthroughs, and reference material to help you unlock everything you can do with GitHub Copilot'
+description: "Curated articles, walkthroughs, and reference material to help you unlock everything you can do with GitHub Copilot"
 tableOfContents: false
 ---
 
@@ -21,3 +21,9 @@ for definitions of common terms and concepts.
 Interactive samples and recipes to learn by doing. Jump into the
 [Cookbook](cookbook/) for code samples, recipes,
 and examples you can use right away.
+
+## Copilot CLI for Beginners
+
+Looking for a guided path into GitHub Copilot from the terminal? Start with
+[Copilot CLI for Beginners](cli-for-beginners/) for a course overview,
+then work through chapters 00 through 07 at your own pace.