Add kafka client examples (#113)

* Add kafka client examples

* update the license header

* Add more go client examples

* Port more examples

* Add a README

* Rename it to `confluent_go`

* Reorganize the directory

* Update the README

Author: sijie

README.md

@@ -4,15 +4,19 @@
 
 # Overview
 
-This is a curated list of demos that showcase Apache Pulsar® messaging and event streaming capabilities.
+This is a curated list of demos that showcase StreamNative messaging and data streaming capabilities.
 
 # Clients
 
 - [PubSub Client Examples](clients/README.md)
 
-# Cloud
+# StreamNative Cloud - Pulsar Clients
 
-- [SteamNative Cloud Examples](cloud/README.md)
+- [SteamNative Cloud - Pulsar Client Examples](cloud/README.md)
+
+# StreamNative Cloud - Kafka Clients
+
+- [SteamNative Cloud - Kafka Client Examples](cloud_kafka/README.md)
 
 # Flink
 

cloud_kafka/README.md

@@ -0,0 +1,6 @@
+<img src="../images/streamnative-logo.png" width="250">
+
+# StreamNative Cloud - Kafka Client Examples
+
+- Go client examples using [confluent-kafka-go](https://github.com/confluentinc/confluent-kafka-go): [README](./confluent-kafka-go/README.md)
+