Add security policy

Author: benjaminskiljan

SECURITY.md

@@ -0,0 +1,16 @@
+# Security policy
+
+## Reporting a vulnerability
+
+If you have found a possible vulnerability, please email
+`security at flare dot network`.
+
+## Bug bounties
+
+We currently don't run any bug bounty program for this project.
+
+## Vulnerability disclosures
+
+Critical vulnerabilities will be disclosed via GitHub's
+[security advisory](https://github.com/flare-foundation/connected-chains-docker/security)
+system.