Add Feluda Documentation

[aatmanvaidya]

This is a broader issue on adding documentation for feluda and its operators. Tasks to do under this issue will be created as sub-issues below.

[SrushtiPatil-tech]

Hi! @aatmanvaidya
I’d like to work on #579 - Update README.md with basic usage of feluda. Could you please assign it to me? I’m excited to contribute to the documentation.

[aatmanvaidya]

hi @SrushtiPatil-tech thank you for you interest, the #579 issue is already getting worked on by someone else