chore: update documentation

crates/proof-of-sql-sdk-local/src/attestation.rs

@@ -178,10 +178,10 @@ pub fn sign_eth_message(private_key: &[u8], message: &[u8]) -> Result<EthereumSi
 
     let digest = hash_eth_msg(message);
 
+    // Gross coercion of types below 
     let (signature, recovery_id) = signing_key.sign_digest_recoverable(digest).unwrap();
-
-    let r = slice_to_scalar(&signature.r().to_bytes()).unwrap();
-    let s = slice_to_scalar(&signature.s().to_bytes()).unwrap();
+    let r = slice_to_scalar(&signature.r().to_bytes()).expect("r should work from sign_digest_recoverable");
+    let s = slice_to_scalar(&signature.s().to_bytes()).expect("s should work from sign_digest_recoverable");
 
     Ok(EthereumSignature::new(r, s, Some(recovery_id.into())))
 }

crates/proof-of-sql-sdk-local/src/lib.rs

@@ -17,4 +17,5 @@ pub mod prover {
     tonic::include_proto!("sxt.core");
 }
 
+/// types for verifying attestations 
 pub mod attestation;