Update README

README.md

@@ -58,11 +58,15 @@ config.es_host = '127.0.0.1'
 config.es_port = '9200'
 
 p = AutoPipes.pipeline('osschat-insert', config=config)
-res = p('https://github.com/towhee-io/towhee/blob/main/README.md')
+res = p('https://github.com/towhee-io/towhee/blob/main/README.md',
+       milvus_collection='osschat',
+       es_index='osschat')
 ```
 
 Then you can run `collection.flush() ` and `collection.num_entities` to check the number of the data in Milvus as a knowledge base.
 
+And run `es_client.search(index='osschat', body={"query":{"match_all":{}}})['hits']['total']['value']` to get the number in elasticsearch.
+
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