A user can now search for an offer title and by its description as well.

I added description as a field a user can search by in the Offers model
Nice, since your just using `params[:search]` here, I'd suggest updating it so that you just pass search. That way, the method doesn't depend on a hash with a field called search. You aren't using multiple values.

IE:

```ruby
def self.search_results(search)
  query = "%#{search}%"
  # ...
end
```