`apt update` missing from the System Requirement instructions

I've noticed a few minutes ago, while looking into this thread: https://www.cfd-online.com/Forums/openfoam-installation/220196-question-cmake-ubuntu-prerequisite.html - that the "System Requirements" page: https://www.openfoam.com/documentation/system-requirements.php - is missing a critical command:

sudo apt-get update

for Ubuntu/Debian instructions; without this, apt and apt-get will fail miserably if the auto-update system didn't kick-in soon enough or because it never does when using WSL.

As a side note, you can change apt-get to apt for the more recent versions of Ubuntu/Debian, which provides a nicer interface and progress bar... even though it still doesn't run update on its own...