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README.md

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 # Building an augmented reality application with the WebXR Device API
 
-This code has the resources you need for the codelab [Building an augmented reality application with the WebXR Device API](https://codelabs.developers.google.com/codelabs/ar-with-webxr/#0).
+This code has the resources you need for the codelab [Building an augmented reality application with the WebXR Device API](https://codelabs.developers.google.com/ar-with-webxr/#0).
 
 This is a work in progress. If you find a mistake or have a suggestion, please [file an issue](https://github.com/googlecodelabs/ar-with-webxr/issues). Thanks!
 
@@ -18,6 +18,6 @@ This is a work in progress. If you find a mistake or have a suggestion, please [
 * [Google Chrome](https://www.google.com/chrome/)
 * [Web Server for Chrome](https://chrome.google.com/webstore/detail/web-server-for-chrome/ofhbbkphhbklhfoeikjpcbhemlocgigb), or your own web server of choice
 * USB cable to connect your AR device to workstation
-* [The sample code](https://github.com/googlecodelabs/g/archive/master.zip)
+* [The sample code](https://github.com/googlecodelabs/ar-with-webxr/archive/refs/heads/master.zip)
 * A text editor
 * Basic knowledge of HTML, CSS, JavaScript, and Chrome DevTools