doc(example): add comments on verifying custom extension (#788)

* Add comments.

* Fix comment.

---------

Co-authored-by: yuroitaki <>

crates/core/src/attestation.rs

@@ -26,7 +26,7 @@
 //! (disallowed by default). A Notary may also be configured to
 //! [validate](crate::attestation::AttestationConfigBuilder::extension_validator)
 //! any extensions requested by a Prover using custom application logic.
-//! Additionally, they  may
+//! Additionally, a Notary may
 //! [include](crate::attestation::AttestationBuilder::extension)
 //! their own extensions.
 

crates/examples/attestation/verify.rs

@@ -50,6 +50,7 @@ async fn verify_presentation(example_type: &ExampleType) -> Result<(), Box<dyn s
         server_name,
         connection_info,
         transcript,
+        // extensions, // Optionally, verify any custom extensions from prover/notary.
         ..
     } = presentation.verify(&provider).unwrap();