message: Increase difficulty of Feedback deletion
  (from 1 to 2 stars)
diff: @@ -150,7 +150,7 @@ function createChallenges () {
  name: 'Five-Star Feedback',
  category: 'Privilege Escalation',
  description: 'Get rid of all 5-star customer feedback.',
  - difficulty: 1,
  + difficulty: 2,
  hint: addHint('Once you found admin section of the application, this challenge is almost trivial.'),
  hintUrl: addHint('https://bkimminich.gitbooks.io/pwning-owasp-juice-shop/content/part2/privilege-escalation.html#get-rid-of-all-5-star-customer-feedback'),
  solved: false
  