Updated Readme to include citation information

README.md

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 # Mixed Initiative Procedural Dungeon Designer
-A unity3d tool which designs dungeon maps based on a level designer's preferences. This was developed for the publication *Mixed-Initiative Procedural Content Generation using Level Design Patterns and Interactive Evolutionary Optimisation*. It is a tool to assist level designers to design levels which would be shipped with a game. Our two design goals were:
+A unity3d tool which designs dungeon maps based on a level designer's preferences. This was developed for the publication *Mixed-Initiative Procedural Content Generation using Level Design Patterns and Interactive Evolutionary Optimisation* which is currently under review, but will shortly be available as a preprint on arXiv.org. It is a tool to assist level designers to design levels which would be shipped with a game. Our two design goals were:
 1. Allow level designers to interact and effect the results of the algorithm through the act of level design and
 2. Support designers to explore the design space.