fixes typo (prebid#5252)

Co-authored-by: “Nick <“nick.llerandi”@kargo.com>

Author: nickllerandi

dev-docs/bidders/kargo.md

@@ -73,7 +73,7 @@ pbjs.setConfig({
 )};
 ```
 
-#### ORTB Blocking specific only to rtbhouse bidder
+#### ORTB Blocking specific only to the Kargo bidder
 
 ```javascript
 pbjs.setBidderConfig({