text: Title: [FIX] logo does not display in Pypi
  Body: https://pypi.org/project/feature-engine/
  
  We need to adjust the source of the image in the readme file so that pypi can read it properly.
  
  Either this link:
  https://raw.githubusercontent.com/feature-engine/feature_engine/main/docs/images/logo/FeatureEngine.png
  
  or the current link plus: `?raw=true` at the end