fix typo

input/blog/2022/2022_07_29_MCH2022.md

 It started by us thinking we are in Düsseldorf, where we had to switch trains.
 We actually were in Duisburg and only noticed after our train we just disembarked had left.
 Fortunately another train drove us to Düsseldorf after only a couple of minutes waiting time, so we were able to catch our original connection without problems.
-Later, between Stuttgart and Ulm, another passenger [pulled the emergency breaks](https://www.presseportal.de/blaulicht/pm/116091/5282567) without reason and caused quite some delay.
+Later, between Stuttgart and Ulm, another passenger [pulled the emergency brakes](https://www.presseportal.de/blaulicht/pm/116091/5282567) without reason and caused quite some delay.
 Because of this I could no longer catch my original connection home.
 On the last train from Ravensburg, where the [Rutenfest](https://www.rutenfest.com/) was held, a whole bunch of drunken passengers stepped on, causing quite some chaos and threatening violence to each other.
 This was quite the contrast to the camp experience just hours before 😔<br>