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 Train a GT4HistOCR Calamari model
 =================================
 
-This trains a Calamari model based on GT4HistOCR. Or rather 5 using
+`train.sh` trains a Calamari model based on GT4HistOCR. Or rather 5 using
 cross-validation to use for confidence voting.
 
 Requires Calamari 0.3.5.
 
+`train.sh` is able to download GT4HistOCR from the web if the `data` submodule
+is not available, that is if you're not a member of the Qurator team at SBB.
+
 Trained models
 --------------
 For a finished model have a look here: