Updated readme

Author: chhayac

README.md

@@ -17,4 +17,4 @@
 | Logistic Regression| [Logistic_Regression.ipynb](https://github.com/chhayac/Machine-Learning-Notebooks/blob/master/Logistic_Regression.ipynb)| Built a logistic regression model from scratch |
 | Fuzzy string matching| [fuzzy_string_matching.ipynb](https://github.com/chhayac/Machine-Learning-Notebooks/blob/master/fuzzy_string_matching.ipynb)| To study how to compare strings and determine how similar they are in Python. |
 | Spam email classification| [spam_email_classification.ipynb]()| Built a spam detection classification model using an email dataset.
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+| Customer churn prediction| [customer_churn_prediction.ipynb]()| To predict if customers churn i.e. unsubscribed or cancelled the service.