Add context for device posture check

Author: maxvp

src/content/partials/cloudflare-one/gateway/policies/enforce-device-posture.mdx

@@ -2,7 +2,7 @@
 {}
 ---
 
-In the following example, users can only access an application if they connect from a company device:
+In the following example, you can use a list of [device serial numbers](/cloudflare-one/identity/devices/warp-client-checks/corp-device/) to ensure users can only access an application if they connect with the WARP client from a company device:
 
 | Selector                     | Operator | Value                   | Logic | Action |
 | ---------------------------- | -------- | ----------------------- | ----- | ------ |