add doc comments

Signed-off-by: Jun Kimura <jun.kimura@datachain.jp>

Author: bluele

modules/remote-attestation/src/dcap.rs

@@ -23,6 +23,7 @@ pub const INTEL_ROOT_CA_HASH: [u8; 32] = [
     59, 178, 70, 13, 249, 208, 27, 51, 61, 112, 9,
 ];
 
+/// Run DCAP remote attestation
 pub fn run_dcap_ra(
     key_manager: &EnclaveKeyManager,
     target_enclave_key: Address,

modules/remote-attestation/src/dcap_simulation.rs

@@ -67,6 +67,7 @@ pub const DCAP_SIM_ROOT_CA_HASH: [u8; 32] = [
     167, 12, 187, 58, 171, 31, 90, 176, 35, 91, 43,
 ];
 
+/// DCAP RA Simulation Options
 #[derive(Debug, Clone)]
 pub struct DCAPRASimulationOpts {
     root_cert: X509,

modules/remote-attestation/src/ias_simulation.rs

@@ -8,6 +8,7 @@ use keymanager::EnclaveKeyManager;
 use log::*;
 use rsa::signature::{SignatureEncoding, Signer};
 
+/// Run IAS RA simulation
 pub fn run_ias_ra_simulation(
     key_manager: &EnclaveKeyManager,
     target_enclave_key: Address,