Make the examples more clear

README.md

@@ -41,7 +41,10 @@ var app = express();
 // setup your routes
 // `options` are set to default values. For more info, see `options` below.
 // app.use(errorHandler({ /* options, see below */ }));
-app.use(errorHandler({debug:true, log:true}));
+app.use(errorHandler({
+  debug: app.get('env') === 'development',
+  log: true,
+}));
 
 app.listen(3000);
 ```
@@ -54,6 +57,8 @@ In LoopBack applications, add the following entry to your
   "final:after": {
     "strong-error-handler": {
       "params": {
+         "debug": false,
+         "log": true,
        }
     }
   }