missing example in documentation for macos viewing with threads

[Ray0716]

i use a mac and this is printed whenever i run the simulation:

[Genesis] [10:34:03] [WARNING] Non-linux system detected. In order to use the interactive viewer, you need to manually run simulation in a separate thread and then start viewer. See examples/render_on_macos.py.

however this file does not exist in the examples folder.

[duburcqa]

You install the latest version of Genesis (branch main) following the readme instructions. This issue has been fixed an it is no longer necessary to do this to get the interactive viewer running on MacOS.