Include WHO application in TP1 + update TP2

TP1

• add resample with WHO application (with Mural)

TP2

• typos
• add parse_dates option in the text for help
• print only the first 3 packets
• add smoothing cell
• add labels in joligraph function + ymax + save option
• add a bit of more help for masks
• make new whiteboard for season/weekend effect (https://app.mural.co/t/variabiliteclimatique4363/m/variabiliteclimatique4363/1632908663484/1f4eb7e42954ae38dacfad167535ede3c8fa0064?sender=ufcbfba826e94d93c633c7410)
• add dayfirst=True for trends
• statsmodels.api (https://stackoverflow.com/questions/27325718/statsmodels-version-0-6-1-does-not-include-tsa)