added more das gupta, fixed some entry names
making space for earlier DasGupta's
tidying, changed file paths to new location
new introductory descriptive section
planning introductory descriptive section- currently working on r
results for it, shouldn't be that much work
added in as-yet unwritten subsections, to be moved around later
some starting words. more to come
added in snippet testing to see results in the pdf output. not permanent
additions