Fix openWeb doc (#3211)

* add Bidsxchange page

* Add openweb doc

* change params

* fix doc

* openWeb doc update

dev-docs/bidders/openweb.md

@@ -3,7 +3,7 @@ layout: bidder
 title: OpenWeb
 description: Prebid OpenWeb Bidder Adapter
 biddercode: openweb
-media_types: video,banner,adpod
+media_types: banner
 gdpr_supported: true
 userIds: britepoolId, criteo, id5Id, identityLink, liveIntentId, netId, parrableId, pubCommonId, unifiedId
 schain_supported: true
@@ -25,27 +25,11 @@ gvl_id: 280
 
 ### Description
 OpenWeb.com official prebid adapter. Available in both client and server side versions.
-OpenWeb header bidding adapter provides solution for accessing both Video and Display demand.
+OpenWeb header bidding adapter provides solution for accessing banner demand.
 
 ### Test Parameters
 ```
 var adUnits = [
-    // Video instream adUnit
-    {
-        code: 'test-div',
-        mediaTypes: {
-          video: {
-            context: 'instream',
-            playerSize: [640, 480]
-          }
-        },
-        bids: [{
-          bidder: 'openweb',
-          params: {
-            aid: 650344
-          }
-        }]
-    },
     // Banner adUnit
     {
         mediaTypes: {