It would be nice to have [Envoy proxy](https://www.envoyproxy.io/) configuration examples, particularly for configurations prior to TLSv1.3. The [default currently will still use TLSv1.0](https://www.envoyproxy.io/docs/envoy/v1.10.0/api-v2/api/v2/auth/cert.proto.html?highlight=tls) as the minimum protocol version.