Update README with demo link and running instructions

Added live demo link, deployed website URL, and instructions to run the prototype.

Author: ylked

README.md

@@ -146,6 +146,21 @@ The website is accessible on [http://localhost:5173](http://localhost:5173).
 
 **80% of the final grade**
 
+live demo: https://youtu.be/WjtaBsId2Pg
+
+The deployed website can be found at [https://com-480-data-visualization.github.io/via/](https://com-480-data-visualization.github.io/via/).
+
+### How to run the prototype
+
+Ensure you have NPM installed on your machine. Then run the following commands:
+
+```shell
+cd via-ui
+npm install
+npm run dev
+```
+
+The website is accessible on [http://localhost:5173](http://localhost:5173).
 
 ## Late policy