BP-55: Implement Prebid Adapter - clarify bidderConfig params (#15)

* BP-55: add clarification for config variables

* BP-55: remove ab value from doc

Author: PavloMalashnyak

modules/BTBidAdapter.md

@@ -18,7 +18,12 @@ The BT adapter requires setup and approval from the Blockthrough team. Please re
 
 # Bidder Config
 
-Make sure to set required ab, orgID, websiteID values received after approval using `pbjs.setBidderConfig`.
+Make sure to set required orgID, websiteID values received after approval using `pbjs.setBidderConfig`.
+
+| Name        | Scope    | Description                                                          | Example            | Type     |
+| ----------- | -------- | -------------------------------------------------------------------- | ------------------ | -------- |
+| `orgID`     | required | A unique ID for your organization provided by the Blockthrough team. | `4829301576428910` | `string` |
+| `websiteID` | required | A unique ID for your site provided by the Blockthrough team.         | `5654012389765432` | `string` |
 
 ## Example
 
@@ -30,7 +35,6 @@ pbjs.setBidderConfig({
       site: {
         ext: {
           blockthrough: {
-            ab: false,
             orgID: '4829301576428910',
             websiteID: '5654012389765432',
           },