fix docs reference visibility

Signed-off-by: acatangiu <adrian@parity.io>

client/finality-grandpa/src/lib.rs

@@ -264,7 +264,7 @@ pub struct Config {
 	pub keystore: Option<SyncCryptoStorePtr>,
 	/// TelemetryHandle instance.
 	pub telemetry: Option<TelemetryHandle>,
-	/// Chain specific Grandpa protocol name. See [`communication::grandpa_protocol_name`].
+	/// Chain specific Grandpa protocol name. See [`crate::protocol_standard_name`].
 	pub protocol_name: std::borrow::Cow<'static, str>,
 }
 
@@ -717,7 +717,7 @@ pub struct GrandpaParams<Block: BlockT, C, N, SC, VR> {
 
 /// Returns the configuration value to put in
 /// [`sc_network::config::NetworkConfiguration::extra_sets`].
-/// For standard protocol name see [`communication::grandpa_protocol_name`].
+/// For standard protocol name see [`crate::protocol_standard_name`].
 pub fn grandpa_peers_set_config(
 	protocol_name: std::borrow::Cow<'static, str>,
 ) -> sc_network::config::NonDefaultSetConfig {