updated names in include other GCP connectors

Author: sionsmith

examples/custom-connect-gcp-gcs/Dockerfile renamed to examples/custom-connect-gcp-connectors/Dockerfile

@@ -4,6 +4,7 @@ USER root
 ENV CONNECT_PLUGIN_PATH="/usr/share/java,/usr/share/confluent-hub-components"
 
 RUN echo Importing connector plugins \
+    && confluent-hub install --no-prompt confluentinc/kafka-connect-gcp-spanner:latest \
     && confluent-hub install --no-prompt confluentinc/kafka-connect-gcs:latest \
     && echo Connector plugins imported
 

examples/custom-connect-gcp-gcs/README.md renamed to examples/custom-connect-gcp-connectors/README.md

@@ -30,11 +30,16 @@ kubectl apply -k .
 kubectl port-forward -n sandbox gcsconnect-0 8083:8083
 ```
 
-8. Create connector using sample JSON
+8. Create connectors using sample JSON
 ```shell
+# GCS example connector
 curl -XPUT -H "Content-Type: application/json" --data @gcs-sink.json -u connect:connect-secret https://localhost:8083/connectors/gcs-sink/config -kv
+
+# Spanner Sink connector
+curl -XPUT -H "Content-Type: application/json" --data @spanner-sink.json -u connect:connect-secret https://localhost:8083/connectors/spanner-sink-connector/config -kv
 ```
 
+
 if successfully:
 ```shell
 * Connection #0 to host localhost left intact