docs: fix SECURITY.md formatting

Author: cpcloud

SECURITY.md

@@ -7,8 +7,8 @@ Security updates are provided by releasing a new version of Ibis.
 ## Reporting a Vulnerability
 
 - Privately send security reports to [the security
-  team](ibis-security.fc04057de4d981273b23058268b61817.show-sender@streams.zulipchat.com)
-  Emails sent to this address are sent to a private Zulip channel where only
+  team](ibis-security.fc04057de4d981273b23058268b61817.show-sender@streams.zulipchat.com).
+- Emails sent to this address are sent to a private Zulip channel where only
   members of the Ibis security team can see them.
 - Vulnerability reports are published on GitHub at https://github.com/ibis-project/ibis/security/advisories
 - If a vulnerability is accepted we will attempt to address it as soon as possible, by cutting a new release.