New Ebdr adapter md (#685)

* create ebdr doc

* Rename ebdr to ebdr.md

Author: youqitron

dev-docs/bidders/ebdr.md

@@ -0,0 +1,23 @@
+---
+layout: bidder
+title: EngageBDR
+description: Prebid EngageBDR Bidder Adaptor
+top_nav_section: dev_docs
+nav_section: reference
+biddercode: ebdr
+biddercode_longer_than_12: false
+hide: true
+prebid_1_0_supported : true
+---
+
+### Bid params
+
+{: .table .table-bordered .table-striped }
+| Name             | Scope    | Description              | Example           |
+|------------------+----------+--------------------------+-------------------|
+| `zoneid`         | required | The EngageBDR Zone ID    | `'99999'`         |
+| `bidfloor`       | optional | Bid Floor Price          | `'1.00'`          |
+| `IDFA`           | optional | IDFA ID                  | `'xxx-xxxx'`      |
+| `ADID`           | optional | ADID ID                  | `'xxx-xxxx'`      |
+| `latitude`       | optional | latitude                 | `'34.089811'`     |
+| `longitude`      | optional | longitude                | `'-118.392805'`   |