added	images/elbow_method.png
added	images/feature_importance.png
added	images/k_means.png
added	images/output.png
added	images/pairplot_all.png
added	images/pairplot_custom.png
added	images/pairplot_custom1.png
added	images/pairplot_custom2.png
added	images/pca_biplot.png
added	images/roc_curve.png
added	images/snippet_decision_tree.png
added	k_means/k-means.ipynb
added	k_means/k-means_clustering.Rmd
added	project_notebook.ipynb