[Document] Add New Examples to docs/examples

Is there anything that's missing or inappropriate in the docs? Please describe.

More examples are needed for demonstration purposes.

Describe your suggestion

Please submit a pull request and contribute examples to the API reference documents. If you are interested in contributing a complete case example, please add it to the /example folder.

Suggested Step

Please find all API reference doc at https://github.com/milvus-io/milvus-sdk-go/tree/master/docs, /examples folder at https://github.com/milvus-io/milvus-sdk-go/tree/master/examples, and the code at https://github.com/milvus-io/milvus-sdk-go/tree/master/client.

You will need to follow the established practice to add examples.

Should you need any assistance, please feel free to contact us.