HINTS.md in trackler-2.2.1.11

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 1. A property-based test works not with a single input value, but with many.
 1. A property-based test verifies properties, not concrete values.
 
 For this exercise, the tests all verify a property of the diamond shape your code should be producing. Furthermore, all tests check if the property they test holds for all valid input letters ('A' to 'Z').
 
-For more information on property-based testing, see [this article](http://www.erikschierboom.com/2016/02/22/property-based-testing/).
+In order to facilitate propery-based testing, the tests in this exercise leverage the [FsCheck](https://www.nuget.org/packages/FsCheck) and [FsCheck.Xunit](https://packages.nuget.org/packages/FsCheck.Xunit/2.2.0) packages. To learn more about FsCheck, the documentation on the framework can be found [here](https://fscheck.github.io/FsCheck/).
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+If you would like more information on property-based testing, see [this article](http://www.erikschierboom.com/2016/02/22/property-based-testing/).
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