Update README.md

Author: keigohtr

README.md

@@ -34,46 +34,30 @@ pip install rekcurd_client
 ```
 
 ## How to use
-Example code is available [here](./example/sample.py).
+Example code is available [here](https://github.com/rekcurd/rekcurd-client-example). When you use Kubernetes and Rekcurd dashboard, you need to specify `application_name`, `service_level` and `rekcurd_grpc_version` correctly.
 
 ```python
 from rekcurd_client import RekcurdWorkerClient
-from rekcurd_client.logger import logger
 
 
-host = 'localhost:5000'
-client = RekcurdWorkerClient(logger=logger, host=host)
+host = 'localhost'
+port = 5000
+application_name = "sample"
+service_level = "development"
+rekcurd_grpc_version = "v2"
 
-input = [0,0,0,1,11,0,0,0,0,0,
-         0,7,8,0,0,0,0,0,1,13,
-         6,2,2,0,0,0,7,15,0,9,
-         8,0,0,5,16,10,0,16,6,0,
-         0,4,15,16,13,16,1,0,0,0,
-         0,3,15,10,0,0,0,0,0,2,
-         16,4,0,0]
-response = client.run_predict_arrint_arrint(input)
-```
-
-When you use Kubernetes and deploy Rekcurd service via Rekcurd dashboard, you can access your Rekcurd service like the below.
-
-```python
-from rekcurd_client import RekcurdWorkerClient
-from rekcurd_client.logger import logger
-
-
-domain = 'example.com'
-app = 'rekcurd-sample'
-env = 'development'
-client = RekcurdWorkerClient(logger=logger, domain=domain, app=app, env=env)
+client = RekcurdWorkerClient(
+    host=host, port=port,
+    application_name=application_name, service_level=service_level, rekcurd_grpc_version=rekcurd_grpc_version)
 
-input = [0,0,0,1,11,0,0,0,0,0,
+idata = [0,0,0,1,11,0,0,0,0,0,
          0,7,8,0,0,0,0,0,1,13,
          6,2,2,0,0,0,7,15,0,9,
          8,0,0,5,16,10,0,16,6,0,
          0,4,15,16,13,16,1,0,0,0,
          0,3,15,10,0,0,0,0,0,2,
          16,4,0,0]
-response = client.run_predict_arrint_arrint(input)
+response = client.run_predict_arrint_string(idata)
 ```
 
 ### RekcurdWorkerClient