Reduce config to bare minimum and remove sample content

_data/navigation.yml

@@ -1,77 +1,16 @@
 # main links links
 main:
   - title: "Quick-Start Guide"
-    url: /docs/quick-start-guide/
+    url: https://mmistakes.github.io/minimal-mistakes/docs/quick-start-guide/
 
-  - title: "Posts"
-    url: /year-archive/
+  - title: "About"
+    url: https://mmistakes.github.io/minimal-mistakes/
 
-  - title: "Categories"
-    url: /categories/
+  - title: "Sample Posts"
+    url: https://mmistakes.github.io/minimal-mistakes/year-archive/
 
-  - title: "Tags"
-    url: /tags/
+  - title: "Sample Pages"
+    url: https://mmistakes.github.io/minimal-mistakes/page-archive/
 
-  - title: "Pages"
-    url: /page-archive/
-
-  - title: "Collections"
-    url: /collection-archive/
-
-
-# documentation links
-docs:
-  - title: Getting Started
-    children:
-      - title: "Quick-Start Guide"
-        path: quick-start-guide
-      - title: "Structure"
-        path: structure
-      - title: "Installation"
-        path: installation
-      - title: "Upgrading"
-        path: upgrading
-
-  - title: Customization
-    children:
-      - title: "Configuration"
-        path: configuration
-      - title: "Navigation"
-        path: navigation
-      - title: "UI Text"
-        path: ui-text
-      - title: "Authors"
-        path: authors
-      - title: "Layouts"
-        path: layouts
-
-  - title: Content
-    children:
-      - title: "Working with Posts"
-        path: posts
-      - title: "Working with Pages"
-        path: pages
-      - title: "Working with Collections"
-        path: collections
-      - title: "Helpers"
-        path: helpers
-      - title: "Utility Classes"
-        path: utility-classes
-
-  - title: Extras
-    children:
-      - title: "Stylesheets"
-        path: stylesheets
-      - title: "JavaScript"
-        path: javascript
-
-  - title: Meta
-    children:
-      - title: "History"
-        path: history
-      - title: "Contributing"
-        path: contributing
-      - title: "Old 2.2 Docs"
-        path: docs-2-2
-      - title: "License"
-        path: license
+  - title: "Sample Collections"
+    url: https://mmistakes.github.io/minimal-mistakes/collection-archive/