Update

Signed-off-by: Jael Gu <mengjia.gu@zilliz.com>

README.md

@@ -52,12 +52,12 @@ Create the operator via the following factory method:
 
 **Parameters:**
 
-All connection arguments are set as None by default. You must provide at least one valid value for uri or host/port.
+You must provide at least one valid value for uri or host/port.
 The order of use: uri > host/port, token > user/password.
 
 ***uri:*** *str*
 
-The uri for Milvus.
+The uri for Milvus, defaults to "http://localhost:19530"
 
 ***host:*** *str*
 

milvus_client.py

@@ -15,7 +15,7 @@ class MilvusClient(PyOperator):
     """
 
     def __init__(self,
-                 uri: str = None,
+                 uri: str = 'http://localhost:19530',
                  host: str = None,
                  port: Union[int, str] = None,
                  token: str = None,