1st case study completed for 3rd module

Adding code for M2 in repo

Name		Name	Last commit message	Last commit date
Latest commit History 5 Commits
.idea		.idea
HandsonML		HandsonML
M1		M1
M2		M2
M3		M3
M4		M4
M5		M5
M6		M6
M7		M7
CS109-2017.xlsx		CS109-2017.xlsx
Logistic_Regression_xes5b.ipynb		Logistic_Regression_xes5b.ipynb
MasterNotbook.ipynb		MasterNotbook.ipynb
README.md		README.md

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