text: Title: Topic 2.2: For new versions, add sns.set() to apply styles throughout notebook
  Body: ![2018-10-26 16-00-58 jupyter notebook viewer - google chrome](https://user-images.githubusercontent.com/1929262/48028382-630f7b80-e15c-11e8-9787-71c6a6100135.jpg)
  
  In the [article](https://mlcourse.ai/notebooks/blob/master/jupyter_english/topic02_visual_data_analysis/topic2_additional_seaborn_matplotlib_plotly.ipynb):
  > Even by simply adding import seaborn in your code, the images of your plots will become much nicer.
  
  This is correct for older versions of seaborn.
  For new versions, add `sns.set()` to apply styles throughout notebook.
  
  From the [documentation](https://seaborn.pydata.org/tutorial/aesthetics.html):
  > (Note that in versions of seaborn prior to 0.8, set() was called on import. On later versions, it must be explicitly invoked).