Contact

There is no form here. One address, read by the person who writes the procedures.

What is worth reporting

An output block that no longer matches what the command produces. Send the command, your tool version and the output you got.
A threshold that has moved, with the source that moved it.
A step that breaks on a current version of the tool.
A check people search for that has no page yet.

A correction gets a new verified date on the page, not a silent edit. How that works is on the methodology page.