Missing information in the section for RPM installation

In this page: https://www.openfoam.com/download/install-binary-linux.php - in the very first section "RPM Installation", it's missing the instructions on how to activate the OpenFOAM-v1812 shell environment...

I only spotted this because of this post: https://www.cfd-online.com/Forums/openfoam-installation/215231-rpm-installation-openfoam-v1812-opensuse-15-0-a.html#post726007