License relationship is ambiguous. Definition should mention "OR" or "AND" relation between the two licenses

[guellaeq]

Describe the bug
The license definition is unclear. There should be some explanations added either in the Cargo.toml or in the README.md file to describe the license relationship.
Currently, it is impossible to know if this package is licensed with an "AND" or an "OR" between the two licenses

example in the Cargo.toml file from the rust docs : https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields

license = "MIT OR Apache-2.0"