Update README.md

Fixed the Unraid script instructions to start the sync.

README.md

@@ -213,7 +213,8 @@ Once installed (or if already installed):
 - Go to the Plugins tab, click on "User Scripts", and click the "Add New Script" button
 - Name your script accordingly
 - Click the "gear" icon next to the script name, and click "Edit Script"
-- Below the "#!/bin/bash" line add: `docker start PlexTraktSync`
+- Below the "#!/bin/bash" line add: `docker exec PlexTraktSync plextraksync sync`
+- The format of the script needs to be docker calling your container name (if you changed it from the default, ie to something like plex-trakt-sync), then issuing the command to sync.
 - Click "Save Changes"
 - Set the schedule accordingly using the dropdown menu next to the "Run in Background" button