Update readme (#20)

* Update av to version 16.0.1

- upgraded av from 10.0.0 to 16.0.1

* docs: update README with virtual environment setup

- Added section for creating a virtual environment
- Updated command for creating venv
- Added instructions for activating venv

* fix(docker): downgrade av package version

- Changed av from 16.0.1 to 10.0.0

---------

Co-authored-by: Haihui.Wang <wanghh2000@163.com>

Author: HaiHui886

README.md

@@ -34,7 +34,6 @@ This project inherits the [Apache License 2.0](LICENSE) from Data Juicer.
 docker build -t dataflow . -f Dockerfile
 ```
 
-
 ## Prerequisites
 
 Launch postgres container
@@ -126,9 +125,19 @@ docker run -d --name celery-work -p 8001:8001 \
 
 ## Run data-flow server in development mode locally
 
+### Create a Virtual Environment
+
 ```bash
-# Create virtual python 3.10 environment
+uv venv --python 3.10
+
+source .venv/bin/activate
+
+# or
+
 conda create -n  dataflow python=3.10
+```
+
+```bash
 
 # Install dependencies
 pip install '.[dist]' -i https://pypi.tuna.tsinghua.edu.cn/simple/