Add instructions for creating and activating a Python virtual environment in README.md

README.md

@@ -30,3 +30,7 @@ git remote set-url origin https://github.com/CoralLeiCN/agent_course_final_assig
 ```
 Github guide on [Adding a local repository to GitHub using Git](https://docs.github.com/en/migrations/importing-source-code/using-the-command-line-to-import-source-code/adding-locally-hosted-code-to-github#adding-a-local-repository-to-github-using-git)
 
+3. Create and activate Python environment by uv
+```bash
+uv venv
+source .venv/bin/activate