Updated Between adapter dev docs (prebid#2549)

* Updated Between adapter dev docs

* Between adapter dev docs: review fix

* Between adapter dev docs: review fix #2

* Added quotes to string params

* Between adapter dev docs: review fix #3

* fixing PBJS adapter params

copied from original client-side adapter commit prebid@8f623b4#diff-b224ab4090e3b286923b7eb808974fcb155f98dda399b7050270d28c7e6f55e4

Co-authored-by: Egor Skorokhodov <skorokhodov@betweenx.com>
Co-authored-by: bretg <bgorsline@gmail.com>

dev-docs/bidders/between.md

@@ -1,7 +1,7 @@
 ---
 layout: bidder
 title: Between
-description: Prebid Between Bidder Adaptor
+description: Prebid Between Bidder Adapter
 pbjs: true
 pbs: true
 biddercode: between
@@ -10,11 +10,23 @@ gdpr_supported: true
 tcf2_supported: true
 ---
 
-### Bid Params
+### Prebid.js Bid Params
 
 {: .table .table-bordered .table-striped }
 | Name          | Scope    | Description | Example | Type     |
 |---------------|----------|-------------|---------|----------|
-| `host` | required |  between host url prefix         | `eu`   | `string` |
+| `s` | required |  Section ID from Between SSP control panel | 999999 | `integer` |
+| `w`        | required | width of placement(Number)                | 240       |
+| `h`        | required | height of placement(Number)               | 400       |
+
+### Prebid-Server Bid Params
+
+{: .table .table-bordered .table-striped }
+| Name          | Scope    | Description | Example | Type     |
+|---------------|----------|-------------|---------|----------|
+| `host` | required |  Between SSP host url prefix. Defines data center where requests will be sent. Choose the closest one to the prebid-server you are using. Allowed values: `lbs-eu1.ads`, `lbs-ru1.ads`, `lbs-asia1.ads`, `lbs-us-east1.ads` | `'lbs-eu1.ads'` | `string` |
+| `publisher_id` | required |  Publisher ID from Between SSP control panel | `'123'` | `string` |
+| `bid_floor` | optional | Minimum price acceptable for a bid. `0.00001` by default  | `0.05` | `float` |
+| `bid_floor_cur` | optional |  Bid floor currency. Allowed values: `USD`, `EUR`, `RUB` | `'USD'` | `string` |