add README.md
add LICENCE
add python_logo.png file to img folder
add datascience.ipynb with basic layout about the tutorial
generate html file from .ipynb using nbconvert
add San Francisco public data sets
get data and analyse it to join data sheets
remove unused data
generate the latest html from ipynb
modify README.md to latest
add biostatistics data set from vanderbilt university
Write Data Pre-Processing steps in ipython notebook update html
add scatter plot and generate updated html from ipynb
add bar graph to data visualization
 add bar plot update to html render
add machine learning algorithms
generate markdown
update html render