[FEATURE] Add list of requirements for setting up business account

[mesosa]

Is your feature request related to a problem? Please describe.
Missing requirement for setting up a facebook business account

Describe the solution you'd like
A clear and concise list of required steps to be able to set up the social feed

Describe alternatives you've considered
None

Additional context
Currently there might be some missing steps or lack of documentation for the client/business how to set up their account ot make it work with social feed