rust: bssl-tls: Properly annotate sections of configuration options

Signed-off-by: Xiangfei Ding <xfding@google.com>
Change-Id: Ifdb3ad8dc7ae939923bfa69b8e1396dc6a6a6964
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/97587
Reviewed-by: Adam Langley <agl@google.com>

rust/bssl-tls/src/connection/credentials.rs

diff --git a/rust/bssl-tls/src/connection/credentials.rs b/rust/bssl-tls/src/connection/credentials.rs
index 6be1ef6..b2cca82 100644
--- a/rust/bssl-tls/src/connection/credentials.rs
+++ b/rust/bssl-tls/src/connection/credentials.rs
@@ -211,7 +211,7 @@
     }
 }
 
-/// # Certificate verification
+/// # Certificate verification - Signed Certificate Timestamps
 impl<M> TlsConnectionInHandshake<'_, Client, M> {
     /// Enable signed certificate timestamps.
     ///
@@ -228,7 +228,7 @@
     }
 }
 
-/// # Certificate verification
+/// # Certificate verification - X.509 Certificate Store
 impl<M> TlsConnectionInHandshake<'_, Client, M> {
     /// Set certificate verification store.
     pub fn set_certificate_store(&mut self, store: &X509Store) -> &mut Self {
@@ -267,7 +267,7 @@
     }
 }
 
-/// # Certificate verification.
+/// # Certificate verification - Server Host Name
 impl<M> TlsConnectionInHandshake<'_, Client, M> {
     /// Set host name.
     pub fn set_host(&mut self, host_name: &str) -> Result<&mut Self, Error> {
@@ -283,7 +283,7 @@
     }
 }
 
-/// # Certificate verification.
+/// # Certificate verification - Certificate Chain Verification
 impl<R, M> TlsConnectionInHandshake<'_, R, M> {
     /// Set depth of a potential certificate chain acceptable.
     pub fn set_verify_depth(&mut self, depth: u16) -> Result<&mut Self, Error> {