Things need to be fixed for milestone 4

[Rachel0619]

1. Add badges for the project in the README.md
2. Changed the version constraints for project.toml file

[salva-u]

Refer to Peer Review Points that need to be updated

[salva-u]

• Project toml version @Rachel0619
• Use [Fix: peer review - to be added](fix: Feedback addressed by ...) --> commit messages should look like this
• Add the new license @Rachel0619 @salva-u
• Workflow : double check that it works and debug issues @salva-u @jlee2843

[salva-u]

• New license added
• Toml Version fixed
• Workflow fixed

[salva-u]

done