Add support for Publisher Common ID Module in Sharethrough bid adapter documentation (#2432)
Add support for Publisher Common ID Module in Sharethrough bid adapter documentation (#2432)

- Related feature PR [here](placeholder)

Story: [#175125639](https://www.pivotaltracker.com/story/show/175125639)
prebid/prebid.github.io,prebid/prebid.github.io,prebid/prebid.github.io