chore: Move to docs directory

docs/mkdocs.yml

@@ -0,0 +1,19 @@
+site_name: MkDocs Quickstart
+# SEO description.
+site_description: "A concise recipe for setting up a MkDocs docs site on GitHub Pages"
+
+nav:
+  - Home: index.md
+  - About MkDocs: about-mkdocs.md
+  - Tutorial:
+      - TL;DR: tutorial/tldr.md
+      - Installation: tutorial/installation.md
+      - Setup project: tutorial/setup-project.md
+      - Advanced: tutorial/advanced.md
+      - Usage: tutorial/usage.md
+      - Deploy: tutorial/deploy.md
+
+theme: readthedocs
+
+# Target for Edit in GitHub button.
+repo_url: https://github.com/MichaelCurrin/mkdocs-quickstart/