fix: importing sentida (python)

[pmadruga]

When importing the library using:

from sentida import Sentida

was getting the following error

/usr/local/lib/python3.8/site-packages/sentida/__init__.py in <module>
----> 1 from sentida.sentida import Sentida, sentida_examples

ModuleNotFoundError: No module named 'sentida.sentida'

I'm sure there are other ways around this but the renaming fixes it for me.

python: v3.8
macOS