title: How to include tags in NuGet package using CLI only
body: <p>I want to add <code>Tags</code> for a nuget package.
  I do NOT want to use a separate <code>.nuspec</code> file (maintenance), 
  I'm only using the csproj for packing.</p>
  
  <p>I've tried setting it using <code>nuget pack -Properties Tags=demo</code> but that doesn't seem to work..?</p>
  
  <p>I'm trying to solve a bigger problem to create some traceability
  using the commit id from the build in the tags? (on VSTS using <em>Build.SourceVersion</em>)</p>
  
  <p>References:</p>
  
  <ul>
  <li><a href="https://docs.microsoft.com/nl-nl/nuget/tools/cli-ref-pack" rel="nofollow noreferrer">NuGet CLI ref.</a></li>
  <li><a href="https://github.com/NuGet/Home/wiki/Adding-nuget-pack-as-a-msbuild-target" rel="nofollow noreferrer">Adding nuget pack as a msbuild target</a></li>
  <li><a href="https://docs.microsoft.com/en-us/vsts/build-release/concepts/definitions/build/variables?tabs=batch" rel="nofollow noreferrer">VSTS Variables</a></li>
  </ul>