fix default sources (#4134)

see https://github.com/transloadit/uppy/blob/main/packages/%40uppy/remote-sources/src/index.js#L26

website/src/docs/remote-sources.md

@@ -46,7 +46,7 @@ A unique identifier for this plugin (`string`, default: `RemoteSources`).
 
 ### `sources`
 
-List of remote sources that will be enabled (`array`, default: `['Box', 'Dropbox', 'Facebook', 'GoogleDrive','Instagram', 'OneDrive', 'Unsplash', 'Url']`).
+List of remote sources that will be enabled (`array`, default: `['Box', 'Dropbox', 'Facebook', 'GoogleDrive','Instagram', 'OneDrive', 'Unsplash', 'Url', 'Zoom']`).
 
 You don’t need to specify them manually or change them, but if you want to alter the order in which they appear in the Dashboard, or disable some sources, this option is for you.