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README.md

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 # Cake - The Portal ending screen in your browser
 
-A recreation of the Portal ending screen made using web tecnologies
+A tribute to one of my favorite games of all time: Portal.
+
+Built on top of web technologies (HTML, JS, and CSS) using Astro as the
+underlying framework.
+
+The aim is to build a version that is 100% accurate, or as close to that as
+reasonably possible. This is achieved by carefully analyzing the assets of the
+original game instead of relying on guesswork like other similar projects.
+
+## Running locally
+
+To run the project locally first ensure you have nodejs version >=18.14.1 with
+corepack enabled.
+
+Then after cloning the repository run the following commands:
+
+```bash
+pnpm install
+pnpm run dev
+```
+
+You can then access the site by visiting http://localhost:4321 in your browser.
 
 ## License