Add tags (#1867)

Add tags (powershell, pwsh)

manifests/Microsoft/Powershell/7.0.2.yaml

@@ -6,6 +6,7 @@ Homepage: https://microsoft.com/PowerShell
 License:  MIT
 Description: PowerShell is a cross-platform (Windows, Linux, and macOS) automation and configuration tool/framework that works well with your existing tools and is optimized for dealing with structured data (e.g. JSON, CSV, XML, etc.), REST APIs, and object models. It includes a command-line shell, an associated scripting language and a framework for processing cmdlets.
 AppMoniker: pwsh
+Tags: powershell, pwsh
 Commands: pwsh
 Installers: 
     - Arch: x64