Configure Docker environment to use Development config server

src/InitializrApi/appsettings.Docker.json

@@ -1,4 +1,11 @@
 {
+  "Spring": {
+    "Cloud": {
+      "Config": {
+        "Env": "Development"
+      }
+    }
+  },
   "Logging": {
     "LogLevel": {
       "Steeltoe.InitializrApi": "Debug"