Update program-list.json (#459)

Author: artis3n

program-list.json

@@ -6015,18 +6015,18 @@
    },
    {
       "program_name": "DigitalOcean",
-      "policy_url": "https://hackerone.com/digitalocean",
-      "contact_url": "https://hackerone.com/digitalocean/reports/new",
+      "policy_url": "https://app.intigriti.com/programs/digitalocean/digitalocean",
+      "contact_url": "https://app.intigriti.com/programs/digitalocean/digitalocean",
       "launch_date": "",
       "offers_bounty": "yes",
       "offers_swag": false,
-      "hall_of_fame": "",
+      "hall_of_fame": "https://app.intigriti.com/company/programs/digitalocean/digitalocean/leaderboard",
       "safe_harbor": "partial",
       "public_disclosure": "",
-      "pgp_key": "",
+      "pgp_key": "https://github.com/digitalocean/security",
       "hiring": "",
-      "securitytxt_url": "",
-      "preferred_languages": "",
+      "securitytxt_url": "https://cloud.digitalocean.com/.well-known/security.txt",
+      "preferred_languages": "en",
       "policy_url_status": "alive"
    },
    {