Need detailed dataset scripts

[alphadl]

See title, Thanks for your beautiful implementation~ But I encounter an error when performing:

Traceback (most recent call last):
  File "train.py", line 107, in <module>
    spacy_de = spacy.load('de')
  File "/usr/local/python/3.6.5/lib/python3.6/site-packages/spacy-2.0.16-py3.6-linux-x86_64.egg/spacy/__init__.py", line 21, in load
    return util.load_model(name, **overrides)
  File "/usr/local/python/3.6.5/lib/python3.6/site-packages/spacy-2.0.16-py3.6-linux-x86_64.egg/spacy/util.py", line 119, in load_model
    raise IOError(Errors.E050.format(name=name))
OSError: [E050] Can't find model 'de'. It doesn't seem to be a shortcut link, a Python package or a valid path to a data directory.```