Apologies in advance if this is the wrong place to post this fairly minor point, but I noticed that many (if not all) of the Quality Declaration files for core ROS packages have a dead link to a ROS2 Onboarding Guide.

Full excerpt from Coverage [4.iii]:
Current coverage statistics can be viewed here. A description of how coverage statistics are calculated is summarized in this page "ROS 2 Onboarding Guide".

A few examples:
rcl
rclcpp
rmw

Has this guide moved somewhere else or should the reference to it be removed altogether? Is there a better document that we should direct new users (like myself) to, to learn how coverage statistics are calculated?

Thanks!