message: Rephrase opening sentence of introduction
  [ci skip]
diff: > [The most trustworthy online shop out there.](https://twitter.com/dschadow/status/706781693504589824)
  > ([@dschadow](https://github.com/dschadow))
  -OWASP Juice Shop is an intentionally insecure web app for security
  -trainings written entirely in Javascript which encompasses the entire
  +OWASP Juice Shop is an intentionally insecure web application written
  +entirely in Javascript which encompasses the entire range of
  [OWASP Top Ten](https://www.owasp.org/index.php/OWASP_Top_Ten) and other
  severe security flaws.
  