Description:
The README currently states:

“The current stable version is v0.4”

However, the documentation and release tags indicate that the current stable version is v0.7.2.

Proposed fix:
Update the README.md file to reflect the correct stable release version: The current stable version is v0.7.2

Link to the doc page, if applicable

https://github.com/microsoft/autogen/blob/main/README.md