add: rhel installation instructions
add: rhel installation instructions
VirusTotal/misp-modules,amuehlem/misp-modules,MISP/misp-modules,amuehlem/misp-modules,VirusTotal/misp-modules,MISP/misp-modules,VirusTotal/misp-modules,MISP/misp-modules,amuehlem/misp-modules