Takes a list of words and searches all documents in the PDF folder folder and counts occurrences of them. The output is a file called results.csv that contains a count of the words broken out by the file they were found in and the category.
Uses the nrc lexicon data from the tidytext package to analyze the sentiment associated with words found in the PDFs in the PDF folder. The output is a file called sentiments.csv that contains a list of all the feelings found in each file.