I would like to use the PreBid Mobile SDK with PreBid Server: http://prebid.org/dev-docs/get-started-with-prebid-server.html
I'm configuring a PreBid Server account hosted by AppNexus, but I do not know how to add a server-side bidder configuration here: https://prebid.adnxs.com/configs/
I would like help on the format when I choose to add a new config.