Update reproduction-instruction.md

reproduction-instruction.md

@@ -37,10 +37,11 @@ There are three notebooks: Processing, Training and Rendering. <br>
 - Rendering load a checkpoint and render desired video
 
 For our custom scenes, we can start at any notebook, just set the correct **data_dir** and **experiment_dir** at the beginning. <br>
-For rendering from a existing experiment/checkpoint, edit the **config.gin** and set the correct dir.
+For rendering from a existing experiment/checkpoint, edit the **config.gin** and set the correct dir before rendering.
 
 Important hyperparameters: image_scale & batch_size
 
+
 # Dataset&checkpoint Download:
 All in one:<br>https://huggingface.co/datasets/xieyizheng/hypernerf_custom_scenes/resolve/main/custom_scenes_all.zip