Fix broken service registration on Cloud Foundry (#430)

Author: bart-vmware

Discovery/src/FortuneTeller/FortuneTellerApi/appsettings.Development.json

@@ -16,6 +16,7 @@
       "ShouldFetchRegistry": false
     },
     "Instance": {
+      "AppName": "fortuneService",
       // Register in STARTING state, until the database has been seeded.
       "InstanceEnabledOnInit": false,
       // Use shortened timings to make this sample more responsive.