Split supporting member years and academic year

data/supporting_members.yaml

@@ -1,6 +1,6 @@
 ---
 data:
-  19-20:
+  2020:
     - name: Titouan Vervack
       nickname: FlashYoshi
       photo: https://zeus.ugent.be/zeuswpi/0U6neVQP.jpg

lib/helpers/about.rb

@@ -12,7 +12,7 @@ module AboutHelper
   end
 
   def current_sponsoring_members
-    sponsoring_members_of(@config[:academic_year].to_sym)
+    sponsoring_members_of(@config[:sponsoring_members_year])
   end
 
   def all_bestuur
@@ -32,7 +32,7 @@ module AboutHelper
   def to_full_year(year)
     (year.to_i < 90) ? "20#{year}" : "19#{year}"
   end
-  
+
   def to_HTML(text)
     text.gsub("<", "&lt;").gsub(">", "&gt;").gsub("\n", "<br>");
   end

nanoc.yaml

@@ -1,5 +1,6 @@
 title: Zeus WPI
 academic_year: 20-21
+sponsoring_members_year: 2020
 # Needed for atom_feed
 author_name: ''
 author_uri: ''