readme: 
  ---
  from transformers import pipeline
  unmasker = pipeline('fill-mask', model='bert-base-uncased')
  unmasker("Hello I'm a [MASK] model.")
  
  [{'sequence': "[CLS] hello i'm a fashion model. [SEP]",
    'score': 0.1073106899857521,
    'token': 4827,
    'token_str': 'fashion'},
   {'sequence': "[CLS] hello i'm a role model. [SEP]",
    'score': 0.08774490654468536,
    'token': 2535,
    'token_str': 'role'},
   {'sequence': "[CLS] hello i'm a new model. [SEP]",
    'score': 0.05338378623127937,
    'token': 2047,
    'token_str': 'new'},
   {'sequence': "[CLS] hello i'm a super model. [SEP]",
    'score': 0.04667217284440994,
    'token': 3565,
    'token_str': 'super'},
   {'sequence': "[CLS] hello i'm a fine model. [SEP]",
    'score': 0.027095865458250046,
    'token': 2986,
    'token_str': 'fine'}]