adding basic notebooks and 'files' folder

DJ-1/1_INTRO_PYTHON.ipynb

DJ-1/2_INTRO_IPYTHON_NOTEBOOK.ipynb

DJ-1/files/.DS_Store

DJ-1/files/IMT_rvb-01-1030x728.jpg

DJ-1/files/data.npz

DJ-1/files/data.txt

DJ-1/files/dice.jpg

DJ-1/files/ex1.py

DJ-1/files/example.png

DJ-1/files/hello.py

DJ-1/files/launch_ipython.py

DJ-1/files/logo-IMT.png

DJ-1/files/save_abc

DJ-1/files/save_abc_V2.bak

DJ-1/files/save_abc_V2.dat

DJ-1/files/save_abc_V2.db

DJ-1/files/save_abc_V2.dir

DJ-1/files/test.mat

DJ-1/files/test.npy

DJ-2/3_INTRO_NUMPY_SCIPY.ipynb