message: Fixes 'spo app get' documentation bug. Closes
diff: @@ -52,7 +52,7 @@ spo app get --name solution.sppkg --appCatalogUrl https://contoso.sharepoint.com
  Return details about the app with ID _b2307a39-e878-458b-bc90-03bc578531d6_ available in the site collection app catalog of site _https://contoso.sharepoint.com/sites/site1_.
  ```sh
  -spo app get --id b2307a39-e878-458b-bc90-03bc578531d6 --scope sitecollection --siteUrl https://contoso.sharepoint.com/sites/site1
  +spo app get --id b2307a39-e878-458b-bc90-03bc578531d6 --scope sitecollection --appCatalogUrl https://contoso.sharepoint.com/sites/site1
  ```
  ## More information
  