Fixed errors in README related to OneFile.

The problem was that `OneFile::Controllers` didn't exist yet and we were trying to create `OneFile::Controllers::Home`.  We had the same problem with `OneFile::Views` and `OneFile::Views::Home`

We also want to include `Lotus::Controller` instead of `OneFile::Controller` and `Lotus::View` instead of `OneFile::View`.

Hopefully this accurately reflects how it should be working.