Update indexExchange.md to include Prebid Server details (#1) (#2331)
Update indexExchange.md to include Prebid Server details (#1) (#2331)

* Update indexExchange.md

* minor spelling fix

* Fixed minor grammatical errors (#2)

* Changed timeout example to 50ms

Co-authored-by: rimaburder-index <80f5e9730cd7666e3d2b0899a81078cfe7a68a6f@users.noreply.github.com>

Co-authored-by: rimaburder-index <80f5e9730cd7666e3d2b0899a81078cfe7a68a6f@users.noreply.github.com>
prebid/prebid.github.io,prebid/prebid.github.io,prebid/prebid.github.io