[Bug] Broken link in firmware installation page

[swanjeng]

Describe the bug
What is the problem?
When trying to install Pybricks firmware to Spike Prime Hub, Robot Inventor Hub, or, in labs.pybricks.com, EV3 through USB, there is a warning text box. It says that some udev rules need to be configured to install firmware to the Hub through USB on Linux. However, when the "Learn more" link is clicked, it leads to a GitHub page, https://github.com/project/pybricks-on-linux/, that doesn't exist.

To reproduce
Steps to reproduce the behavior:

1. Go to code.pybricks.com
2. Click on install pybricks firmware
3. Select Spike Prime or Robot Inventor
4. Click "next" until the install page.
5. Click "Learn more" in the orange text box.
6. See GitHub saying "404 Page not Found"

Expected behavior
What did you expect to happen instead?
I noticed that there is a Pybricks project page on "Using Pybricks on Linux". The "Learn more" link should lead to here.

Screenshots
There is a saying that a picture is worth a 1000 words. Screenshots really help to identify and solve problems.