added a space (#837)

Author: Ellen-Wittingen

translations/nl.yaml

@@ -181,7 +181,7 @@ component:
         logistics: Logistiek Coördinator
         vice-president: Vice Voorzitter
     history:
-      header: LANG-TODO
+      header: LANG-TODO 
       event-1980: LANG-TODO
       event-1981: LANG-TODO
       event-1982: LANG-TODO