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/astro.config.mjs

@@ -83,6 +83,23 @@ export default defineConfig({
           label: "Reference",
           items: ["learning-hub/github-copilot-terminology-glossary"],
         },
+        {
+          label: "Copilot CLI for Beginners",
+          items: [
+            {
+              label: "Overview",
+              link: "/learning-hub/cli-for-beginners/",
+            },
+            "learning-hub/cli-for-beginners/00-quick-start",
+            "learning-hub/cli-for-beginners/01-setup-and-first-steps",
+            "learning-hub/cli-for-beginners/02-context-and-conversations",
+            "learning-hub/cli-for-beginners/03-development-workflows",
+            "learning-hub/cli-for-beginners/04-agents-and-custom-instructions",
+            "learning-hub/cli-for-beginners/05-skills",
+            "learning-hub/cli-for-beginners/06-mcp-servers",
+            "learning-hub/cli-for-beginners/07-putting-it-all-together",
+          ],
+        },
         {
           label: "Hands-on",
           items: [