update docs

examples/FasterRCNN/predict.py

@@ -115,8 +115,8 @@ if __name__ == '__main__':
     parser.add_argument('--benchmark', action='store_true', help="Benchmark the speed of the model + postprocessing")
     parser.add_argument('--config', help="A list of KEY=VALUE to overwrite those defined in config.py",
                         nargs='+')
-    parser.add_argument('--compact', help='if you want to save a model to .pb')
-    parser.add_argument('--serving', help='if you want to save a model to serving file')
+    parser.add_argument('--compact', help='Save a model to .pb')
+    parser.add_argument('--serving', help='Save a model to serving file')
 
     args = parser.parse_args()
     if args.config:
@@ -147,7 +147,7 @@ if __name__ == '__main__':
             ModelExporter(predcfg).export_compact(args.compact, optimize=False)
         elif args.serving:
             ModelExporter(predcfg).export_serving(args.serving, optimize=False)
-     
+
         if args.predict:
             predictor = OfflinePredictor(predcfg)
             for image_file in args.predict: