doc: Update readme. Change the docker image base to jupyter minimal

Dockerfile

@@ -1,4 +1,4 @@
-FROM quay.io/jupyter/datascience-notebook
+FROM quay.io/jupyter/minimal-notebook:latest
 
 # Clone the repository from github
 RUN git clone https://gitlab.com/LBL-QubiC/software.git /home/jovyan/packages/QubiC/software

README.md

@@ -7,6 +7,18 @@ on superconducting circuits-based quantum computing systems.
 
 ## Quick Start 
 
+### Docker image
+To use the Docker image, run the following command:
+
+```bash
+docker run -p 8888:8888 -p 5000:5000 -v /path/to/local/folder:/home/jovyan/ ghcr.io/shuxiangcao/leeq:latest
+```
+
+Then, open the browser and go to `http://localhost:8888` to access the Jupyter notebook. The port 5000 is used for the
+live plotting server. To mount the local folder, replace `/path/to/local/folder` with the path to the local folder.
+
+### Tutorial
+
 See the [Quick Start Guide](docs/quick_start.md) for a 10-minute guide to launch LeeQ. Or the [One-hour full tutorial tutorial](docs/tutorial.md).
 
 A notebook example and configuration example are prepared in the [notebook](notebooks) folder.