fix danny's name, sorry danny

Author: prolic

README.md

@@ -77,7 +77,7 @@ A successfully merged pull request will add you to the HALL OF FAME!
 ### Features
 
 - [x] Project set up, register user, post todo - done by [people at prooph](https://github.com/orgs/prooph/people)
-- [x] [Mark a todo as done](https://github.com/prooph/proophessor-do/issues/1) - done by [Danny van der Sluys](https://github.com/DannyvdSluijs)
+- [x] [Mark a todo as done](https://github.com/prooph/proophessor-do/issues/1) - done by [Danny van der Sluijs](https://github.com/DannyvdSluijs)
 - [ ] [Reopen a todo](https://github.com/prooph/proophessor-do/issues/2) - done by [your name here]
 - [ ] Add deadline to todo - done by [your name here]
 - [ ] Add reminder for assignee - done by [your name here]