fixup! chore: apply suggestions from code review (#13)

src/lib.rs

@@ -109,7 +109,12 @@
 //! # Token handling
 //!
 //! This crate also provides some functionality regarding the encoding and decoding of access
-//! tokens, especially of CBOR Web Tokens.
+//! tokens, especially of CBOR Web Tokens (CWTs), which are based on the COSE specification 
+//! (RFC 9052).
+//! 
+//! Generation and validation of CWTs is supported for CWTs based on signed and encrypted 
+//! COSE objects. Additionally, helper methods are provided to more easily create and validate 
+//! COSE objects that are encrypted, signed or authenticated using MACs.   
 //!
 //! See the [token] module-level documentation for more information.