improve setup.md
improve setup.md

- remove unecessary white spaces
- add white spaces around colons
- fix typo: 'prerequistes' should be 'prerequisites'
- fix link to `netcdfc++`
- add colons
- add periods

Borisvl/amazon-dsstne,Borisvl/amazon-dsstne,amznlabs/amazon-dsstne,rybakov/amazon-dsstne,rybakov/amazon-dsstne,Borisvl/amazon-dsstne,rybakov/amazon-dsstne,Borisvl/amazon-dsstne,amznlabs/amazon-dsstne,amznlabs/amazon-dsstne