Update maschinenraum.en.md

docs/maschinenraum.en.md

@@ -140,7 +140,9 @@ A user can go to his profile (`/<conference_slug>/me`) and redeem a token in "My
 
 A url is available to auto-fill in the token input field: `/<conference_slug>/me/redeem_badge/<redeem_token>`.
 
-When a user redeems a badge via the frontend, it is automatically accepted and set to private on his profile.
+When a user redeems a badge via his profile, it is automatically accepted and set to private on their profile.
+
+![]( img/badgeDokuFrontend1.png)
 
 ###### Automaticly assign a badge to a user via the API
 An API is provided to automatically assign a badge to an user. These badges need to be accepted by the user (`/<conference_slug>/me/manage_badges`).