Add "Open South Code" event to data/supporters.json

Hi, we are using the Berlin Code of Conduct for our event, and we will be appreciated it if you can add us to this list.

Author: linuxonrails

_data/supporters.json

@@ -2579,6 +2579,20 @@
           "email": "[email protected]"
         }
       ]
+    },
+    {
+      "name": "Open South Code",
+      "city": "Málaga",
+      "country": "Spain",
+      "link": "https://www.opensouthcode.org/",
+      "twitter": "opensouthcode",
+      "contacts": [
+        {
+          "name": "David Sedeño",
+          "twitter": "david_sedeno",
+          "email": "[email protected]"
+        }
+      ]
     }
   ]
 }