Add docs for `pbjs.aliasBidder()` (#281)
Add docs for `pbjs.aliasBidder()` (#281)

* Add docs for `pbjs.aliasBidder()`

* Updates based on feedback from @aneuway2

(With some minor edits)

prebid/prebid.github.io,sonobi/prebid.github.io,sonobi/prebid.github.io,sonobi/prebid.github.io,prebid/prebid.github.io,prebid/prebid.github.io