Add info for lmod@7.7 and lmod@7.6.14 (#5450)
Add info for lmod@7.7 and lmod@7.6.14 (#5450)

Lightly tested on CentOS 7
tmerrick1/spack,lgarren/spack,lgarren/spack,krafczyk/spack,LLNL/spack,iulian787/spack,krafczyk/spack,TheTimmy/spack,skosukhin/spack,iulian787/spack,LLNL/spack,TheTimmy/spack,EmreAtes/spack,tmerrick1/spack,tmerrick1/spack,mfherbst/spack,tmerrick1/spack,LLNL/spack,skosukhin/spack,LLNL/spack,matthiasdiener/spack,matthiasdiener/spack,mfherbst/spack,TheTimmy/spack,skosukhin/spack,lgarren/spack,matthiasdiener/spack,matthiasdiener/spack,LLNL/spack,iulian787/spack,mfherbst/spack,mfherbst/spack,EmreAtes/spack,krafczyk/spack,iulian787/spack,skosukhin/spack,EmreAtes/spack,lgarren/spack,skosukhin/spack,TheTimmy/spack,krafczyk/spack,EmreAtes/spack,lgarren/spack,krafczyk/spack,matthiasdiener/spack,tmerrick1/spack,EmreAtes/spack,TheTimmy/spack,iulian787/spack,mfherbst/spack