Update session-2.ipynb
Update session-2.ipynb

Add info for keeping RGB range value when resizing your own images
padipadou/CADL,dariox2/CADL,alvaroing12/CADL,padipadou/CADL,niazangels/CADL,pkmital/CADL,niazangels/CADL,goddoe/CADL,alvaroing12/CADL,pkmital/CADL,dariox2/CADL,goddoe/CADL