Update syntax in ReadMe to be the correct one from get-help

[bergmeister]

PR Summary

Some parameters got out of date, therefore I copy-pasted the correct syntax of all exported cmdlets by using Get-help into the readme.

PR Checklist

Note: Tick the boxes below that apply to this pull request by putting an x between the square brackets. Please mark anything not applicable to this PR NA.

• PR has a meaningful title
  • Use the present tense and imperative mood when describing your changes
• Summarized changes
• User facing documentation needed
• Change is not breaking
• [NA] Make sure you've added a new test if existing tests do not effectively test the code changed
• This PR is ready to merge and is not work in progress
  • If the PR is work in progress, please add the prefix WIP: to the beginning of the title and remove the prefix when the PR is ready

[JamesWTruher]

looks good