fast-wfc link

README.md

@@ -139,6 +139,7 @@ that the resulting observed zone is navigable at each step.
 * [Aman Tiwari](https://github.com/aman-tiwari) formulated the connectivity constraint as an [ASP problem](https://gist.github.com/aman-tiwari/8a7b874cb1fd1270adc203b2af293f4c) for clingo.
 * MatveyK programmed a [3d overlapping model](https://github.com/MatveyK/Kazimir).
 * [Sylvain Lefebvre](https://github.com/sylefeb), [Li-Yi Wei](https://github.com/1iyiwei) and [Connelly Barnes](https://github.com/connellybarnes) are [investigating](https://hal.archives-ouvertes.fr/hal-01706539/) the possibility of hiding information inside textures. They made a [tool](https://members.loria.fr/Sylvain.Lefebvre/infotexsyn/) that can encode text messages as WFC tilings and decode them back. This technique allows to use WFC tilings as QR codes.
+* [Mathieu Fehr](https://github.com/math-fehr) and [Nathanael Courant](https://github.com/Ekdohibs) significantly [improved](https://github.com/math-fehr/fast-wfc) the running time of WFC, by an order of magnitude for the overlapping model.
 
 ## How to build
 WFC is a console application that depends only on the standard library. Build instructions from the community for various platforms can be found in the [relevant issue](https://github.com/mxgmn/WaveFunctionCollapse/issues/3). Casey Marshall made a [pull request](https://github.com/mxgmn/WaveFunctionCollapse/pull/18) that makes using the program with the command line more convenient and includes snap packaging.