Colab URL returns 404

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Description of the bug

Link "Open in Colab" leads to broken link.

### Steps to reproduce

Click "Open in Colab" in README

### Expected behavior

It should open a working Colab page.

### Screenshots / Logs

_No response_

### Software information

(Browser)

### Additional context

_No response_