update example

config.json.example

@@ -2,8 +2,8 @@
   "admin_username": "admin",
   "admin_password": "admin",
   "hostname": "localhost:3000",
-  "inventory_provider": "http://inventory-provider01.geant.org:8080",
-  "reporting_provider": "http://prod-tableau-wdc.geant.org:9090",
+  "inventory_provider": "https://prod-inprov01.geant.org",
+  "reporting_provider": "https://prod-tableau-wdc.geant.org",
   "datasources": {
     "influxdb": {
       "name": "PollerInfluxDB",