Update README.md

demos/metaverse/README.md

@@ -5,21 +5,17 @@ Metaverse is a new Internet application and social form integrating virtual real
 
 This demo is an implementation to let a celebrity in an image "speak". With the composition of `TTS` mudule of `PaddleSpeech` and `PaddleGAN`, we integrate the installation and the specific modules in a single shell script. 
 
-## How to use our code
+## Usage
 
 You can make your favorite person say the specified content with the `TTS` mudule of `PaddleSpeech` and `PaddleGAN`, and construct your own virtual human.
 
-First, locate the directory you would like to run our code, and set the environment variants. 
-```shell
-./path.sh
-```
-Download the celebrity image in the current directory, in our case we use `Lamarr.png`.
-
-Second, run `run.sh` to complete all the essential procedures, including the installation.  
+Run `run.sh` to complete all the essential procedures, including the installation.  
 
-```shell
+```bash
 ./run.sh
 ```
-If you would like to try your own image, please replace the image name in the shell script.
+In `run.sh`, it will execute `source path.sh` firstly, which will set the environment variants. 
+
+If you would like to try your own image, please replace the image `download/Lamarr.png` in the shell script.
 
 The result has shown on our [notebook](https://github.com/PaddlePaddle/PaddleSpeech/blob/develop/docs/tutorial/tts/tts_tutorial.ipynb).