[docs] Interactor works on macOS and Windows with hardcoded discovery

[Djelibeybi]

I think the rst link syntax is correct, but please confirm (and delete this comment) prior to merging. :)

Updated the note to let folks know that while bulb discovery may not work, the rest of Interactor does. Also, removed the version from the image (so it always pulls latest) and wrapped the variable in quotes to avoid possible expansion issues.

Signed-off-by: Avi Miller me@dje.li