fix django typo

openshift/templates/django-postgresql.json

@@ -437,7 +437,7 @@
     },
     {
       "name": "DJANGO_SECRET_KEY",
-      "displayName": "Djange Secret Key",
+      "displayName": "Django Secret Key",
       "description": "Set this to a long random string.",
       "generate": "expression",
       "from": "[\\w]{50}"