Completed 6-python-data-science-toolbox-(part-2)

Completed 6-python-data-science-toolbox-(part-2)/3-bringing-it-all-together!/

completed: 6-python-data-science-toolbox-(part-2)/2-list-comprehensions-and-generators

updated chapter details

completed: 6-python-data-science-toolbox-(part-2)/1-using-iterators-in-pythonland

added course and chapter details

added datasets

completed 5-importing-data-in-python-(part-1)

5-importing-data-in-python-(part-1)/3-working-with-relational-databases-in-python

updated datasets

completed: 5-importing-data-in-python-(part-1)/2-importing-data-from-other-files-types

completed: 5-importing-data-in-python-(part-1)/1-introduction-and-flat-files

added and removed datasets

added moby_dick.txt to datasets

added datasets to 5-importing-data-in-python-(part-1)