Merge pull request #15 from tgharold/switch-to-license-tag-not-licenseurl-1

Switch to using PackageLicenseExpression in csproj

Author: tgharold

src/RecursiveDataAnnotationsValidation/RecursiveDataAnnotationsValidation.csproj

@@ -5,7 +5,7 @@
  <PackageVersion>9.99.999</PackageVersion>
  <Title>Recurisive DataAnnotations Validation</Title>
  <Authors>Thomas Harold</Authors>
- <PackageLicenseUrl>https://github.com/tgharold/RecursiveDataAnnotationsValidation/blob/master/LICENSE</PackageLicenseUrl>
+ <PackageLicenseExpression>MIT</PackageLicenseExpression>
  <RepositoryUrl>https://github.com/tgharold/RecursiveDataAnnotationsValidation</RepositoryUrl>
  <PackageTags>dataannotation validator</PackageTags>
  </PropertyGroup>