Fix a link in the ambassador table

en/prototype_distribution.md

@@ -21,7 +21,7 @@ Here's what you have to know:
 | Amsterdam | [badge.team](https://badge.team)             | the_JinX    |
 | Dresden   | [c3d2](https://c3d2.de/space.html)           | Astro       |
 | Bamberg   | [backspace](https://hackerspace-bamberg.de/) | schinken    |
-| Karlsruhe | [Entropia)https://entropia.de/)              | uberardy    |
+| Karlsruhe | [Entropia](https://entropia.de/)             | uberardy    |
 | Mannheim  | [RaumZeitLabor](https://raumzeitlabor.de/)   | cheatha     |
 
 Most ambassadors can be reached via the #card10badge Freenode/Matrix channel.