[DOC] Add feedback widget about docs HOT 2 OPEN

Hello @Hugoo,

I came across this issue while searching for "docs feedback widget" on GitHub. I'm the founder of PushFeedback, a feedback widget designed specifically for documentation sites that integrates seamlessly with Docusaurus.

It's quite customizable, so you can also set it up as a widget at the end of every page:

We offer a complimentary plan for open-source projects, which includes unlimited feedback entries for one project while maintaining PushFeedback branding. If you're considering adding a feedback mechanism to your documentation, I invite you to create an account. Once you're set up, please let me know, and I'll remove the limitations for your docs project.

Looking forward to hearing from you!

from docs.

https://docusaurus.io/feature-requests/p/feedback-widget

I saw it was "Planned" by the docusaurus team, but it looks pretty stale so perhaps we can look at @dgarcia360's tool

from docs.