Fix inline documentation after recent changes

src/traits.rs

@@ -190,6 +190,8 @@ pub trait GraphTopologyAddition: GraphTopology {
     ///
     /// Use this before adding multiple vertices to avoid incremental growth on each call to
     /// [`add_vertex`].
+    ///
+    /// [`add_vertex`]: GraphTopologyAddition::add_vertex
     fn reserve_vertices(&mut self, additional: usize);
 
     /// Reserves capacity for at least `additional` more edges. Does nothing if capacity is already
@@ -197,6 +199,8 @@ pub trait GraphTopologyAddition: GraphTopology {
     ///
     /// Use this before adding multiple edges to avoid incremental growth on each call to
     /// [`add_edge`].
+    ///
+    /// [`add_edge`]: GraphTopologyAddition::add_edge
     fn reserve_edges(&mut self, additional: usize);
 
     /// Adds a new isolated vertex and returns its handle.