Change comments and some options to conform to WIKI pages

Author: drwatson1

ProjectTemplates/ReferenceProject/Settings.cs

@@ -15,7 +15,7 @@ public static class Settings
 
         public static class Services
         {
-            public static string CoolService { get; } = TrimUrl(Get("CoolServiceEndpoint"));  // %ORIGIN% will be substituted with the value from an environment variable
+            public static string CoolService { get; } = TrimUrl(Get("CoolServiceEndpoint"));  // %ENDPOINT_HOST% will be substituted with the value from an environment variable
             public static string AnotherService { get; } = TrimUrl(Get("AnotherServiceEndpoint"));
         }
     }

ProjectTemplates/ReferenceProject/appsettings.json

@@ -22,6 +22,6 @@
         ]
     },
     "AllowedHosts": "*",
-    "CoolServiceEndpoint": "http://%ORIGIN%/cool",
-    "AnotherServiceEndpoint": "http://%ORIGIN%/another"
+    "CoolServiceEndpoint": "http://%ENDPOINT_HOST%/cool",
+    "AnotherServiceEndpoint": "http://%ENDPOINT_HOST%/another"
 }