Add integration note with {btw}

[coatless]

Maybe add a vignette? Show btw use with searcher?

Maybe extend the prompt system to collect behind the scenes the data?

[coatless]

Thinking more on this... We're going to have fun with the later option of extending the prompt system. Lots of cool ideas would be possible to add context. The limiting factor here will be the 2,000 character URL limit.

So, we're potentially rewriting ask_*() functions to be:

ask_*(query, 
          context = c("auto")
)

This will limit the ability to do things without quotes; but, it'll allow us to setup intelligent parsing and avoid overriding the user clipboard.

We'll probably also guard this feature now (since it's not on CRAN) and because there are a lot of dependencies. Maybe a tinybtw is needed?