message: Fixed 'spo cdn origin add' example, origin argument is r (not o)
diff: @@ -160,7 +160,7 @@ class SpoCdnOriginAddCommand extends SpoCommand {
  Examples:
  Add ${chalk.grey('*/CDN')} to the list of origins of the Public CDN
  - ${chalk.grey(config.delimiter)} ${commands.CDN_ORIGIN_ADD} -t Public -o */CDN
  + ${chalk.grey(config.delimiter)} ${commands.CDN_ORIGIN_ADD} -t Public -r */CDN
  More information:
  