docs: Add test123 page to getting started section

fern/docs/pages/learn/docs/getting-started/test123.mdx

@@ -0,0 +1,6 @@
+---
+title: test123
+slug: learn/docs/getting-started/test123
+---
+
+hey there!!

fern/products/docs/docs.yml

@@ -14,6 +14,8 @@ navigation:
         path: ./pages/getting-started/project-structure.mdx
       - link: Customer showcase
         href: https://buildwithfern.com/showcase#docs-customers.alldocs-features
+      - page: test123
+        path: ../../docs/pages/learn/docs/getting-started/test123.mdx
   - changelog: ./pages/changelog
     icon: fa-regular fa-clock-rotate-left
   - section: Configuration
@@ -343,9 +345,9 @@ navigation:
     contents:
       - page: Overview
         path: ./pages/security/overview.mdx
-  -  section: Self-hosted
-     collapsed: true
-     contents:
+  - section: Self-hosted
+    collapsed: true
+    contents:
       - page: Overview
         path: ./pages/enterprise/self-hosted.mdx
       - page: Set up self-hosted documentation
@@ -400,7 +402,7 @@ navigation:
       - page: GitLab
         path: ./pages/developer-tools/gitlab.mdx
       - page: Vale
-        path: ./pages/developer-tools/vale.mdx  
+        path: ./pages/developer-tools/vale.mdx
       - page: View Markdown
         path: ./pages/developer-tools/view-markdown.mdx
       - page: Download OpenAPI spec
@@ -466,4 +468,3 @@ navigation:
     # must be included to use the schema component
   - api: API reference
     api-name: docs-yml
-