Updated bidder: Adnuntius (#3312)

* Adnuntius Bidder documentation added

* Fixed targeting text.

* Added documentation for passing segments in the bidder config.

* changed the way to send user segments to bidder.

* Moved string to type + examples.

* Adnuntius update for prebid server.

dev-docs/bidders/adnuntius.md

@@ -3,10 +3,12 @@ layout: bidder
 title: Adnuntius
 description: Prebid Adnuntius Bidder Adaptor
 pbjs: true
+pbs: true
 biddercode: adnuntius
 media_types: banner
 gdpr_supported: true
 fpd_supported: true
+gvl_id: 855
 ---
 
 ### Bid Params
@@ -54,23 +56,44 @@ Here's an example of sending targeting information about categories to adnuntius
 There's an option to send segment id in the bidder config that will be picked up and sent to the ad server. Below is an example on how to do this:
 
 ```
+pbjs.setBidderConfig({
+    bidders: ['adnuntius', 'bidderB'],
+    config: {
+        ortb2: {
+            user: {
+                data: [{
+                    name: "adnuntius",
+                    segment: [
+                        { id: "1" },
+                        { id: "2" }
+                    ]
+                }]
+            }
+        }
+    }
+});
+```
+
+### Prebid Server Test Request
 
-			pbjs.setBidderConfig({
-				bidders: ['adnuntius', 'bidderB'],
-				config: {
-					ortb2: {
-						user: {
-							data: [{
-								name: "adnuntius",
-								segment: [
-									{ id: "1" },
-									{ id: "2" }
-								]
-							}]
-						}
-					}
-				}
-			});
+The following test parameters can be used to verify that Prebid Server is working properly with the server-side Adnuntius adapter. the `auId` below will not return a creative. Please substitute it with your own.
 
-´´´
+```
+"imp": [{
+    "id": "impression-id",
+    "banner": {
+        "format": [{
+            "w": 980,
+            "h": 240
+        }, {
+            "w": 980,
+            "h": 360
+        }]
+    },
+    "ext": {
+        "adnuntius": {
+            "auId": "abc123"
+        }
+    }
+}]
 ```