TO BE SQUASHED Fix docs

crates/chain/src/tx_graph.rs

@@ -1072,7 +1072,7 @@ impl<A> ChangeSet<A> {
     /// This is useful if you want to find which heights you need to fetch data about in order to
     /// confirm or exclude these anchors.
     ///
-    /// See also: [`Self::missing_heights`]
+    /// See also: [`TxGraph::missing_heights`]
     pub fn relevant_heights(&self) -> impl Iterator<Item = u32> + '_
     where
         A: Anchor,