[UIA-1389] Remove the beta badge from the Workflow Groups page + update documentation

[semiramaria]

Docs: remove the new features instruction from the documentation

[CLAassistant]

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[Yiyun333]

@semiramaria Thanks for sending us the pull request. It looks like more changes were committed than intended. Could you please fix that? If not, I can also close this PR and open a new one containing only the required update. Do let me know :)

Additionally, could you please sign the Contributor License Agreement
Be sure to use the same email address you used to sign in and create the pull request. Thanks a lot!

[Yiyun333]

Another question: Is this tied to any Studio Pro release (like the upcoming 11.6 release)? When should the update be merged?

[semiramaria]

I will close this PR. I have created a new: #10465

[Yiyun333]

@semiramaria Thanks a lot! I'll close the PR.