## Description
This PR introduces the following changes in the documentation:
- Restructuring of sidebar for intuitive navigation for
overview/introduction. **Note:** The content covered by the section
along with rest of the documentation is still under major revision and
the skeleton of the documentation is being provided for easier access to
end-users.
- Updation of information regarding lack of availability of Bucket CORS
for MinIO community edition that's used by compose clusters by default.
- Linting for documentation for consistency with prettier.
549cd74537