Added a simple project on Logistic Regression

[animeshdutta888]

Proposed changes

A simple project to predict whether a product will be purchased or not after passing parameters like age, gender and salary using Logistic Regression.

Types of changes

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• Bugfix (non-breaking change which fixes an issue)
• [ x] New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

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• [ x] I have read the CONTRIBUTING doc
• Lint and unit tests pass locally with my changes
• I have added necessary documentation (if appropriate)

Further comments

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