improve readme (microsoft#630)

* improve readme

* Update README.md

Co-authored-by: Chi Wang <wang.chi@microsoft.com>

---------

Co-authored-by: Chi Wang <wang.chi@microsoft.com>

README.md

@@ -5,7 +5,6 @@
 [![](https://img.shields.io/discord/1153072414184452236?logo=discord&style=flat)](https://discord.gg/pAbnFJrkgZ)
 [![Twitter](https://img.shields.io/twitter/url/https/twitter.com/cloudposse.svg?style=social&label=Follow%20%40pyautogen)](https://twitter.com/pyautogen)
 
-This project is a spinoff from [FLAML](https://github.com/microsoft/FLAML).
 
 # AutoGen
 
@@ -15,7 +14,7 @@ This project is a spinoff from [FLAML](https://github.com/microsoft/FLAML).
 </p> -->
 :fire: Nov 11: AutoGen experimentally supports OpenAI's Assistants! Checkout the [GPT Assistant Agent](autogen/agentchat/contrib/gpt_assistant_agent.py).
 
-:fire: Nov 8: AutoGen is selected into [Open100: Top 100 Open Source achievements](https://www.benchcouncil.org/evaluation/opencs/annual.html) 40 days after release.
+: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.
 
 :fire: Nov 6: AutoGen is mentioned by Satya Nadella in a [fireside chat](https://youtu.be/0pLBvgYtv6U) around 13:20.