Remove Xunit nuget package references from Tests.props
Added System.Text.RegularExpressions source
Fix some XML comments
Merge pull request #227 from mellinoe/add-regex

Added System.Text.RegularExpressions source
Update README.md

Added Regular Expressions description
Merge pull request #225 from krwq/removePackagesReferencesFromTestsProps

Remove Xunit nuget package references from Tests.props
Merge pull request #226 from alfaproject/xml-comments

Fix some XML comments