message: Fix typo in StableGraph::edge_indices doc
diff: @@ -509,7 +509,7 @@ where
  }
  }
  - /// Return an iterator over the node indices of the graph
  + /// Return an iterator over the edge indices of the graph
  pub fn edge_indices(&self) -> EdgeIndices<E, Ix> {
  EdgeIndices {
  iter: enumerate(self.raw_edges()),
  