Fix some cargo doc warnings

Author: Alenar

examples/client-mithril-stake-distribution/src/main.rs

@@ -1,8 +1,6 @@
 //! This example shows how to implement a Mithril client and use its features.
 //!
 //! In this example, the client interacts by default with a real aggregator (`testing-preview`) to get the data.
-//!
-//! The [SlogFeedbackReceiver] is used to report the progress to the console.
 
 use anyhow::anyhow;
 use clap::Parser;

mithril-relay/src/p2p/error.rs

@@ -1,6 +1,6 @@
 use thiserror::Error;
 
-/// [Peer] related errors.
+/// [Peer][crate::p2p::Peer] related errors.
 #[derive(Debug, Error)]
 pub enum PeerError {
     /// Topic does not exist