Backport of sam/abci-responses (#9090) (#9159)

*backport of sam/abci-responses

Co-authored-by: William Banfield <4561443+williambanfield@users.noreply.github.com>

privval/doc.go

@@ -1,13 +1,12 @@
 /*
-
 Package privval provides different implementations of the types.PrivValidator.
 
-FilePV
+# FilePV
 
 FilePV is the simplest implementation and developer default.
 It uses one file for the private key and another to store state.
 
-SignerListenerEndpoint
+# SignerListenerEndpoint
 
 SignerListenerEndpoint establishes a connection to an external process,
 like a Key Management Server (KMS), using a socket.
@@ -15,15 +14,14 @@ SignerListenerEndpoint listens for the external KMS process to dial in.
 SignerListenerEndpoint takes a listener, which determines the type of connection
 (ie. encrypted over tcp, or unencrypted over unix).
 
-SignerDialerEndpoint
+# SignerDialerEndpoint
 
 SignerDialerEndpoint is a simple wrapper around a net.Conn. It's used by both IPCVal and TCPVal.
 
-SignerClient
+# SignerClient
 
 SignerClient handles remote validator connections that provide signing services.
 In production, it's recommended to wrap it with RetrySignerClient to avoid
 termination in case of temporary errors.
-
 */
 package privval