Create talkads.md (#3323)

* Create talkads.md

* Update talkads.md

* Add test feature with fake test bid

dev-docs/bidders/talkads.md

@@ -0,0 +1,74 @@
+---
+layout: bidder
+title: Talkads
+description: Talkads Prebid Bidder Adapter
+biddercode: talkads
+gdpr_supported: true
+gvl_id: 
+usp_supported: false
+coppa_supported: false
+media_types: banner, native
+safeframes_ok: false
+pbjs: true
+pbs: false
+prebid_member: false
+pbjs_version_notes: v4.35 and later
+---
+
+### Registration
+
+The Talkads Adapter requires setup before beginning. Please contact us at www.natexo.com and register to the publisher side.
+
+### Configuration
+
+#### Prebid.js
+
+The TalkAds adapter does not work without setting the correct tag ID and bidder URL.
+These parameters are totally specific to each Publisher, you will receive them when contacting us.
+
+### Bid Params
+
+{: .table .table-bordered .table-striped }
+
+| Name         | Scope    | Description                                                    | Example                                                 | Type           |
+|--------------|----------|----------------------------------------------------------------|---------------------------------------------------------|----------------|
+| `tag_id`     | required | The publisher tag id given by the Natexo team                  | `99`                                                    | `number`       |
+| `bidder_url` | required | The publisher bidder url given by the Natexo team              | `'https://test.natexo-programmatic.com/tad/tag/prebid'` | `string`       |
+
+#### Native example
+
+```
+var adUnits = [
+    code: '/19968336/prebid_native_example_1',
+    mediaTypes: {
+        native: {
+        }
+    },
+    bids: [{
+        bidder: 'talkads',
+        params: {
+            tag_id: 0,
+            bidder_url: 'https://d.natexo-programmatic.com/tad/tag/testbid',
+        },
+    }]
+];
+```
+
+#### Banner example
+```
+var adUnits = [
+    code: '/19968336/prebid_display_example_1',
+    mediaTypes: {
+      banner: {
+        sizes: [[300, 250]]
+      } 
+    },
+    bids: [{
+        bidder: 'talkads',
+        params: {
+            tag_id: 0,
+            bidder_url: 'https://d.natexo-programmatic.com/tad/tag/testbid',
+        },
+    }]
+];
+```