text: Title: Incompatible options: paragraph=True, output_format='dict'
  Body: Running the example:
  
  ```python
  import easyocr
  reader = easyocr.Reader(['ch_sim','en']) # need to run only once to load model into memory
  result = reader.readtext('chinese.jpg', paragraph=True, output_format='dict')
  ```
  
  gives the error:
  
  ```python
  .../easyocr/easyocr.py in <listcomp>(.0)
      365             return [item[1] for item in result]
      366         elif output_format == 'dict':
  --> 367             return [ {'boxes':item[0],'text':item[1],'confident':item[2]} for item in result]
      368         else:
      369             return result
  
  IndexError: list index out of range
  ```
  
  because `paragraph=True` option produces `result` that is list of 2-element lists,
  while `output_format='dict'` waits for 3-element list ("confident" is missing).