PRIVATE: corrections in api.tml in datasets section (fix #3828, replace 'publications' with 'datasets'), fix typo 'Alternatevely'
Added section on terms of services and SLA in the specific API pages
Added APi rate limits
removed authorOpenaireId parameter + change the message to say the schema is already changed
Removed openaireAuthorID from API documentation
Adding warning for schema change
Added HTML files for api documentation based on uikit