add doc for openai assistants

Author: qingyun-wu

README.md

@@ -12,7 +12,7 @@
     <img src="https://github.com/microsoft/autogen/blob/main/website/static/img/flaml.svg"  width=200>
     <br>
 </p> -->
-:fire: Nov 11: AutoGen experimentally supports OpenAI's Assistants! Checkout the [GPT Assistant Agent](autogen/agentchat/contrib/gpt_assistant_agent.py).
+:fire: Nov 11: AutoGen experimentally supports OpenAI's Assistants! Checkout our [blogpost](https://microsoft.github.io/autogen/blog/2023/11/13/OAI-assistants) for details and examples.
 
 :fire: Nov 8: AutoGen is selected into [Open100: Top 100 Open Source achievements](https://www.benchcouncil.org/evaluation/opencs/annual.html) 35 days after spinoff.
 

website/docs/Examples/AgentChat.md

@@ -39,3 +39,8 @@ Links to notebook examples:
 5. **Agent Teaching and Learning**
    - Teach Agents New Skills & Reuse via Automated Chat - [View Notebook](https://github.com/microsoft/autogen/blob/main/notebook/agentchat_teaching.ipynb)
    - Teach Agents New Facts, User Preferences and Skills Beyond Coding - [View Notebook](https://github.com/microsoft/autogen/blob/main/notebook/agentchat_teachability.ipynb)
+
+6. **Multi-Agent Chat with OpenAI Assistants in the loop**
+   - Chat with OpenAI Assistant using function call - [View Notebook](https://github.com/microsoft/autogen/blob/main/notebook/agentchat_oai_assistant_function_call.ipynb)
+   - Chat with OpenAI Assistant with Code Interpreter - [View Notebook](https://github.com/microsoft/autogen/blob/main/notebook/agentchat_oai_code_interpreter.ipynb)
+   - OpenAI Assistant in a Group Chat - [View Notebook](https://github.com/microsoft/autogen/blob/main/notebook/agentchat_oai_assistant_groupchat.ipynb)

website/docs/Use-Cases/agent_chat.md

@@ -114,6 +114,11 @@ The figure below shows six examples of applications built using AutoGen.
    - Teach Agents New Skills & Reuse via Automated Chat - [View Notebook](https://github.com/microsoft/autogen/blob/main/notebook/agentchat_teaching.ipynb)
    - Teach Agents New Facts, User Preferences and Skills Beyond Coding - [View Notebook](https://github.com/microsoft/autogen/blob/main/notebook/agentchat_teachability.ipynb)
 
+6. **Multi-Agent Chat with OpenAI Assistants in the loop**
+   - Chat with OpenAI Assistant using function call - [View Notebook](https://github.com/microsoft/autogen/blob/main/notebook/agentchat_oai_assistant_function_call.ipynb)
+   - Chat with OpenAI Assistant with Code Interpreter - [View Notebook](https://github.com/microsoft/autogen/blob/main/notebook/agentchat_oai_code_interpreter.ipynb)
+   - OpenAI Assistant in a Group Chat - [View Notebook](https://github.com/microsoft/autogen/blob/main/notebook/agentchat_oai_assistant_groupchat.ipynb)
+
 ## For Further Reading
 
 _Interested in the research that leads to this package? Please check the following papers._