Make commands consistent

Several small inconsistencies

• Currently there are many PMC commands for which we don't include the dotnet CLI equivalent in the documentation, although it applies
• Sometimes we use PM>, sometimes not, sometimes we just say Run or Execute and include the command inline.
• We should consider making it so that it is always possible to click on Copy button and then paste on the real command line
• Perhaps use PowerShell blocks for PMC, something else for dotnet CLI and other commands.
• We should use tabs to show the different ways to do the same thing