Add index page for gh-pages?

docs/index.md

@@ -0,0 +1,13 @@
+These are the joy docs. I tried to separate them by "useful unit of work" or common things you do when you make a web app:
+
+- [Introduction](introduction.md)
+- [Quick Start](tutorial.md)
+- [Routing](routing.md)
+- [Requests and Responses](requests-and-responses.md)
+- [Database Queries](database-queries.md)
+- [Database Migrations](database-migrations.md)
+- [HTML Rendering](html-rendering.md)
+- [Form Submission](form-submission.md)
+- [Middleware](middleware.md)
+- [Sessions](sessions.md)
+- [Authentication](authentication.md)