Description added for Volatile Cedar

clusters/threat-actors.json

@@ -912,6 +912,7 @@
      },
      {
        "value": "Volatile Cedar",
+       "description": "Beginning in late 2012, a carefully orchestrated attack campaign we call Volatile Cedar has been targeting individuals, companies and institutions worldwide. This campaign, led by a persistent attacker group, has successfully penetrated a large number of targets using various attack techniques, and specifically, a custom-made malware implant codenamed Explosive .",
        "refs": ["https://www.checkpoint.com/downloads/volatile-cedar-technical-report.pdf"]
      }
   ]