add: [tools] More documentation for the stix ingestion script
add: [tools] More documentation for the stix ingestion script

MISP/MISP,MISP/MISP,MISP/MISP,MISP/MISP,SteveClement/MISP,SteveClement/MISP,SteveClement/MISP,SteveClement/MISP,MISP/MISP,SteveClement/MISP