chore: fix some comments (#5661)

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---------

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Author: AdventureSeeker987

protocols/gossipsub/src/behaviour.rs

@@ -947,7 +947,7 @@ where
                     && !self.backoffs.is_backoff_with_slack(topic_hash, p)
             });
 
-            // Add up to mesh_n of them them to the mesh
+            // Add up to mesh_n of them to the mesh
             // NOTE: These aren't randomly added, currently FIFO
             let add_peers = std::cmp::min(peers.len(), self.config.mesh_n());
             tracing::debug!(

protocols/gossipsub/src/peer_score/params.rs

@@ -229,7 +229,7 @@ pub struct TopicScoreParams {
 
     ///  P1: time in the mesh
     ///  This is the time the peer has been grafted in the mesh.
-    ///  The value of of the parameter is the `time/time_in_mesh_quantum`, capped by `time_in_mesh_cap`
+    ///  The value of the parameter is the `time/time_in_mesh_quantum`, capped by `time_in_mesh_cap`
     ///  The weight of the parameter must be positive (or zero to disable).
     pub time_in_mesh_weight: f64,
     pub time_in_mesh_quantum: Duration,