message: Fixed typo in the 'spo site appcatalog add' documentation
diff: @@ -30,7 +30,7 @@ To create a site collection app catalog, you have to first connect to a SharePoi
  Add a site collection app catalog to the specified site
  ```sh
  -spo site add appcatalog add --url https://contoso.sharepoint/sites/site
  +spo site appcatalog add --url https://contoso.sharepoint/sites/site
  ```
  ## More information
  