Update doc file for Mediaforce Bid Adapter (#2155)
Update doc file for Mediaforce Bid Adapter (#2155)

* add mediaforce bid adapter docs

* Update doc file for Mediaforce Bid Adapter

Co-authored-by: ksanksana <ee1497acdc7faeeed9eb8b54cc0dd45ea10fcd14@gmail.com>
prebid/prebid.github.io,prebid/prebid.github.io,prebid/prebid.github.io