Update README.md for WHCP versions

[jacob-ronstadt]

Checklist for Pull Requests

• Description is filled out.
• Only one query or related query group is in this pull request.
• The version number on changed queries has been increased via the @version comment in the file header.
• All unit tests have been run: (Test README.md).
• Commands codeql database create and codeql database analyze have completed successfully.
• A .qhelp file has been added for any new queries or updated if changes have been made to an existing query.