Bidmatic Bid Adapter: initial release (#5391)

* Add bidmatic adapter doc

* Fix heading

* Fix spacing

dev-docs/bidmatic.md

@@ -0,0 +1,60 @@
+---
+layout: bidder
+title: Bidmatic Bid Adapter
+description: Prebid example Bidder Adapter
+biddercode: bidmatic
+tcfeu_supported: true
+dsa_supported: true
+gvl_id: 1134
+usp_supported: true
+coppa_supported: true
+gpp_sids: tcfeu, usp
+schain_supported: true
+dchain_supported: false
+userId: all
+media_types: banner, video
+safeframes_ok: true
+deals_supported: false
+floors_supported: true
+fpd_supported: true
+pbjs: true
+pbs: true
+prebid_member: false
+multiformat_supported: will-bid-on-one
+ortb_blocking_supported: true
+sidebarType: 1
+---
+
+### Note
+
+Unleash the power of fast client-oRTB connection.
+Contact us at [[email protected]](mailto:[email protected]).
+
+### Bid Params
+
+{: .table .table-bordered .table-striped }
+| Name          | Scope    | Description           | Example   | Type      |
+|---------------|----------|-----------------------|-----------|-----------|
+| `source`      | required | Traffic source origin id      | `'11111'`    | `int` |
+
+### Test Parameters
+
+``` javascript
+    var adUnits = [
+      // Banner adUnit
+      {
+        code: 'elemtId',
+        mediaTypes:{
+            banner:{
+                sizes: [[300, 250]]
+            }
+        }
+        bids: [{
+          bidder: 'bidmatic',
+          params: {
+            source: 886409
+          }
+        }]
+      }
+    ];
+```