What feed formats are supported? Notify user of an addition of an unsupported format
Building on #143 and the spirit of giving the user more information about issues encountered, is there a listing anywhere that specifically lists what kinds of feeds are supported? There are a multitude of formats, and multiple versions of just RSS for instance. It would be good to put this information somewhere.
Also, if the user attempts to add an unsupported format, the application should tell them it is unsupported when reporting issues reading a feed.
Thanks