Update README.md

Author: hangzhaomit

README.md

@@ -73,7 +73,7 @@ The code is developed under the following configurations.
 1. Download the ADE20K scene parsing dataset:
 ```bash
 chmod +x download_ADE20K.sh
-. download_ADE20K.sh
+./download_ADE20K.sh
 ```
 2. Train a network (default: resnet34_dilated8). During training, checkpoints will be saved in folder ```ckpt```, visual results will be saved in folder ```vis```.
 ```bash
@@ -123,7 +123,8 @@ usage: eval.py [-h] --id ID [--suffix SUFFIX] [--arch_encoder ARCH_ENCODER]
 ## Test/Inference
 1. Here is a simple demo to do inference on a single image:
 ```bash
-. demo_test.sh
+chmod +x demo_test.sh
+./demo_test.sh
 ```
 2. Input arguments: (see full input arguments via ```python test.py -h ```)
 ```bash