Experimental features missing elements

[TravisEz13]

Experimental features should have two additional elements:

1. An indication of quality similar to:

   • Alpha
   • Beta
   • RC

2. A link to the design and or a place to give feedback. This may be a link to the RFC for the feature

[TravisEz13]

https://github.com/PowerShell/PowerShell-RFC/blob/master/5-Final/RFC0033-Experimental-Feature-User-Experience.md