Notebooks NLP update (#198)

Des modifs de forme et de fond

* mini coquilles matplotlib

* relecture 5_clustering (fin de la partie modelisation!)

* relecture NLP index

* relecture NLP 01_intro

Co-authored-by: Lino Galiana <33896139+linogaliana@users.noreply.github.com>

* kmeans2

* Relec ka 1112 (02_exoclean de la partie NLP) (#196)

* v0 de get_data pour partie NLP

* get_data modif

* relecture 02_exoclean

* Automated changes

* Automated changes

* Automated changes

* update debut

* draft

* Automated changes

* Automated changes

* clean

* use Rmd

* détails

* dets

* dets

* Automated changes

* Automated changes

* waffle chart

* Automated changes

* Automated changes

* from master

* Automated changes

* Automated changes

Co-authored-by: Kim A <kim.antunez@ensae.fr>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>