Update DO!Hack name

wirebug · hagenburger · commit 5e82c2be87f8 · 2019-03-30T11:42:21.000+01:00
No more date changes required now ;-)
diff --git a/data/supporters.json b/data/supporters.json
@@ -1023,7 +1023,7 @@
       ]
     },
     {
-      "name": "DO!Hack 2016",
+      "name": "DO!Hack",
       "city": "Dortmund",
       "country": "Germany",
       "link": "https://www.dohack.io",
