In the chapter [Connecting Points](https://github.com/diagrams/diagrams-doc/blob/master/doc/arrow.rst#connecting-points) in the Tutorial for Arrows the word Normalized links to [Diagrams-Prelude-ThreeD](http://projects.haskell.org/diagrams/haddock/Diagrams-Prelude-ThreeD.html#t:Normalized) instead of [Diagrams-Core-Types](http://hackage.haskell.org/package/diagrams-core-1.2.0.5/docs/Diagrams-Core-Types.html#v:Normalized).