Update board member names and images in persons.yml

Author: pignatiadis

_data/persons.yml

@@ -1,21 +1,21 @@
-- name: Jannis Bergmann
+- name: Niklas Börstinghaus
   function: "1. Vorsitzender"
   active: true
-  image: "img/persons/jannis-bergmann.jpg"
+  image: "img/persons/blank.svg"
   order: 0_vorstand_1
   boardmember: true
 
-- name: Leo Moser
+- name: Paul Ignatiadis
   function: "2. Vorsitzender"
   active: true
-  image: "img/persons/leo-moser.jpg"
+  image: "img/persons/blank.svg"
   order: 0_vorstand_2
   boardmember: true
 
-- name: Scarlet Song
+- name: Jannis Bergmann
   function: "3. Vorsitzende"
   active: true
-  image: "img/persons/scarlet-song.jpg"
+  image: "img/persons/jannis-bergmann.jpg"
   order: 0_vorstand_3
   boardmember: true