Add comma after however

Not having the comma changes the meaning of the word - from "any way" with no comma, to "but actually" with a comma. It is the latter meaning the guides are intending.
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Michael Hagar 2020-06-18 21:17:52 -05:00 committed by GitHub
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@ -53,7 +53,7 @@ And you have a view file `app/views/books/index.html.erb`:
Rails will automatically render `app/views/books/index.html.erb` when you navigate to `/books` and you will see "Books are coming soon!" on your screen.
However a coming soon screen is only minimally useful, so you will soon create your `Book` model and add the index action to `BooksController`:
However, a coming soon screen is only minimally useful, so you will soon create your `Book` model and add the index action to `BooksController`:
```ruby
class BooksController < ApplicationController