Add Firefox and Edge H3 connection

Author: maxvp

src/content/docs/cloudflare-one/policies/gateway/http-policies/http3.mdx

@@ -22,7 +22,7 @@ To enable HTTP/3 inspection, turn on the [Gateway proxy](/cloudflare-one/policie
 
 ### Application limitations
 
-Gateway can inspect HTTP/3 traffic from Mozilla Firefox and Microsoft Edge, as well as other HTTP applications, such as cURL.
+Gateway can inspect HTTP/3 traffic from Mozilla Firefox and Microsoft Edge by establishing an HTTP/3 proxy connection. Gateway will then terminate the HTTP/3 connection, decrypt and inspect the traffic, and connect to the destination server over HTTP/2. Gateway can also inspect other HTTP applications, such as cURL.
 
 If the UDP proxy is enabled in Zero Trust, Google Chrome will force all HTTP/3 traffic to fall back to HTTP/2, allowing you to enforce your HTTP policies. If the UDP proxy is not enabled, HTTP/3 traffic from Chrome will bypass inspection.