Add index.html

 We’ve come now to the end of the 30,000-foot view of a Rails
application. The demo app developed in this chapter has several
strengths and a host of weaknesses.
Strengths

    High-level overview of Rails
    Introduction to MVC
    First taste of the REST architecture
    Beginning data modeling
    A live, database-backed web application in production

Weaknesses

    No custom layout or styling
    No static pages (like “Home” or “About”)
    No user passwords
    No user images
    No signing in
    No security
    No automatic user/micropost association
    No notion of “following” or “followed”
    No micropost feed
    No test-driven development
    No real understanding

The rest of this tutorial is dedicated to building on the strengths and
eliminating the weaknesses.