https://github.com/jobreu/tidyverse-workshop-gesis-2019
https://github.com/FabianFox/Webscraping-Muenster-
https://blog.scrapinghub.com/web-scraping-gdpr-compliance-guide
https://github.com/tm4ss/tm4ss.github.io
http://quanteda.io/articles/quickstart.html