add init files

.gitignore

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+# Ignore the following files
+/videos    # Too large
+/project   # Seperate git project
+.Rproj.user

README.md

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+# CS 171 - nteractive Data Visualization with D3
+Professional Graduate Data Science Coursework - Fall semester 2016
+
+## Description: 
+The course topics included good design practices for data visualizations, methods for visualizing from different sources, and programming of interactive web-based visualizations using D3 (Javascript).
+
+## File Layout
+The directory structure is as follows:
+
+DIRECTORY           | DESCRIPTION
+--------------------|----------------------
+`.`                 | Files such as README and gitignore
+`./hw/`             | The homework project files
+`./labs/`           | Material from the labs
+`./lectures/`       | Material from the lectures
+`./midterm/`        | Material from the midterms
+`./project/`        | Material from the final project
+`./videos/`         | Videos from the lectures and labs
+
+## Website
+You can access all the coursework etc. [here](https://greenore.github.io).