Update README.md

Author: HadenSmith

README.md

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 # Numerics
-***Numerics*** is an opensource library for .NET developed by the U.S. Army Corps of Engineers Risk Management Center (USACE-RMC). ***Numerics*** provides a comprehensive set of methods and algorithms for numerical computations and statistical analysis, serving as a cornerstone of the RMC software suite. The library includes routines for specialized functions, interpolation, regression, statistics, machine learning, probability distributions, bootstrap uncertainty analysis, Bayesian Markov Chain Monte Carlo, optimization, root finding, and more.
+***Numerics*** is a free and open-source library for .NET developed by the U.S. Army Corps of Engineers Risk Management Center (USACE-RMC). ***Numerics*** provides a comprehensive set of methods and algorithms for numerical computations and statistical analysis, serving as a cornerstone of the RMC software suite. The library includes routines for interpolation, regression, time series data, statistics, machine learning, probability distributions, bootstrap uncertainty analysis, Bayesian Markov Chain Monte Carlo, optimization, root finding, and more.
 
 ## Support
 The RMC is committed to maintaining and supporting the software, providing regular updates, bug fixes, and enhancements on an annual basis or as needed.
@@ -8,5 +8,7 @@ The repository contains builds for:
 * .NET 8.0
 * .NET Framework 4.8.1
 
+Each build has a unit testing library with more than 1,000 tests. These tests also provide examples for using the classes and methods in the library.
+
 ## Installation Instructions
 We recommend using NuGet for convenient installation of Numerics.