Update README.md

Former-commit-id: bcf3f64

Author: Xing Han Lu

README.md

@@ -16,15 +16,16 @@ environment.
 
 ## Downloading and running a single app
 
-If you don't want to clone the entire repo, you can also download an individual app as a zip file (see the [releases](https://github.com/plotly/dash-sample-apps/releases)), decompress and run them. In the example below, replace `<name>` by the name of the app:
+Visit the [releases page](https://github.com/plotly/dash-sample-apps/releases) and download and `unzip` the app you want. Then `cd` into the app directory and install its dependencies in a virtual environment in the following way:
 
 ```bash
-wget https://github.com/plotly/dash-sample-apps/releases/latest/download/<name>.zip
-unzip <name>.zip
-cd <name>/
 python -m venv venv
 source venv/bin/activate  # Windows: \venv\scripts\activate
 pip install -r requirements.txt
+```
+
+then run the app:
+```bash
 python app.py
 ```