Update README and ROADMAP; Fix typos; optimize the code for llm calling in agent.py

README.md

@@ -63,6 +63,7 @@ pip install desktop-env
 vmrun -T ws list
 ```
 If the installation along with the environment variable set is successful, you will see the message showing the current running virtual machines.
+> **Note:** We will also support using [VirtualBox](https://www.virtualbox.org/) in the near future if you have issues with VMware Pro. However, features such as parallelism and macOS on Apple chips are not supported.
 
 All set! Our setup script will automatically download the necessary virtual machines and configure the environment for you.
 
@@ -135,6 +136,14 @@ Correctly implement the agent interface and import your customized version in th
 Afterward, you can execute a command similar to the one in the previous section to run the benchmark on your agent.
 
 ## ❓ FAQ
+### What is the username and password for the virtual machines?
+The username and password for the virtual machines are as follows:
+- **Ubuntu:** `user` / `password`
+
+### How can I configure a proxy for the VM if I'm behind a GFW?
+
+See [Proxy Guideline](PROXY_GUIDELINE.md).
+
 ### What are the running times and costs under different settings?
 | Setting                        | Expected Time* | Budget Cost (Full Test Set/Small Test Set) |
 | ------------------------------ | -------------- | ------------------------------------------ |
@@ -145,10 +154,6 @@ Afterward, you can execute a command similar to the one in the previous section
 
 \*No environment parallelism. Calculated in April 2024.
 
-### How can I configure a proxy for the VM if I'm behind a GFW?
-
-See [Proxy Guideline](PROXY_GUIDELINE.md)
-
 ## 📄 Citation
 If you find this environment useful, please consider citing our work:
 ```