New Adapter AdGrid (#5559)

* Added adgrid doc file

* Updated note text

* Added newline char

* Removed blank line

* Fixed code block

* Fixed adunit code

* Fixed EOF

* Fixed EOF

* Added New Meta Data

* Updated Meta Data

dev-docs/bidders/adgrid.md

@@ -0,0 +1,72 @@
+---
+layout: bidder
+title: AdGrid
+description: Prebid AdGrid Bidder Adaptor
+biddercode: adgrid
+media_types: banner
+pbjs: true
+tcfeu_supported: false
+dsa_supported: false
+gvl_id: none
+usp_supported: false
+coppa_supported: false
+gpp_sids: none
+schain_supported: true
+dchain_supported: false
+userId: no
+safeframes_ok: false
+deals_supported: false
+floors_supported: true
+fpd_supported: false
+prebid_member: false
+ortb_blocking_supported: false
+privacy_sandbox: no
+sidebarType: 1
+---
+
+### Note
+
+The AdGrid Bidding Adapter requires setup and approval before beginning. Please reach out to <[email protected]> for more details.
+
+### Bid Params
+
+{: .table .table-bordered .table-striped }
+| Name       | Scope    | Description  | Example | Type      |
+|------------|----------|--------------|---------|-----------|
+| `domainId` | required | Publisher Id | `30164` | `integer` |
+
+### Test Parameters
+
+```javascript
+var adUnits = [
+  // Banner adUnit
+  {
+    code: 'test-div-1',
+    mediaTypes:{
+      banner:{
+        sizes: [[300, 250]]
+      }
+    }
+    bids: [{
+      bidder: 'adgrid',
+      params: {
+        domainId: 12345
+      }
+    }]
+  },
+  {
+    code: 'test-div-2',
+    mediaTypes:{
+      banner:{
+        sizes: [[728, 90], [320, 50]]
+      }
+    }
+    bids: [{
+      bidder: 'adgrid',
+      params: {
+        domainId: 67890
+      }
+    }]
+  }
+];
+```