Add instructions to test auto-ref-ci protocol with TIGERs autoRef

Author: g3force

cmd/ssl-auto-ref-ci-client/README.md

@@ -10,8 +10,29 @@ The protobuf format can be found in [../../proto/ssl_autoref_ci.proto](../../pro
 The default port is `10013`.
 
 ## Sample client
-The sample client, that is included in this folder, can be used to test the connection. It can be run with 
-```bash
+
+The sample client, that is included in this folder, can be used to test the connection. It can be run with
+
+```shell
 go run cmd/ssl-auto-ref-ci-client/main.go
 ``` 
+
 Pass it the `-h` parameter to get the available options.
+
+## Test with TIGERs AutoRef
+
+```shell
+# Run GC in CI mode
+ssl-game-controller -timeAcquisitionMode ci
+
+# Run autoRef in active CI mode (headless)
+docker run --net host -ti tigersmannheim/auto-referee -c -a -hl
+
+# Alternatively: Run autoRef in active CI mode with UI (Linux only)
+docker run --net host -e DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix -ti tigersmannheim/auto-referee-vnc -c -a
+
+# Run test client
+go run cmd/ssl-auto-ref-ci-client/main.go
+
+# Send a FORCE_START via GC-UI and check if ball_left_field is detected
+```