Create sevio.md (#6137)

* Create sevio.md

* Update dev-docs/bidders/sevio.md

Co-authored-by: Muki Seiler <muuki88@users.noreply.github.com>

* Update sevio.md after review

---------

Co-authored-by: Muki Seiler <muuki88@users.noreply.github.com>

Author: petrican

dev-docs/bidders/sevio.md

@@ -0,0 +1,27 @@
+---
+layout: bidder
+title: Sevio
+description: Prebid Sevio Bidder Adaptor
+pbjs: true
+pbs: false
+biddercode: sevio
+sidebarType: 1
+tcfeu_supported: true
+usp_supported: true
+gvl_id: 1393
+media_types: native
+safeframes_ok: false
+deals_supported: false
+fpd_supported: false
+prebid_member: false
+ortb_blocking_supported: false
+---
+
+
+### Bid Params
+
+{: .table .table-bordered .table-striped }
+
+| Name          | Scope    | Description      | Example | Type     |
+|---------------|----------|------------------|---------|----------|
+| `zone`        | required | Zone Id          |         | `string` |