Updated build instructions to remove --prod

src-ui/src/environments/environment.ts

@@ -1,5 +1,5 @@
 // This file can be replaced during build by using the `fileReplacements` array.
-// `ng build --prod` replaces `environment.ts` with `environment.prod.ts`.
+// `ng build --configuration production` replaces `environment.ts` with `environment.prod.ts`.
 // The list of file replacements can be found in `angular.json`.
 
 export const environment = {