chore: remove confusing dsn setting value
@@ -245,10 +245,10 @@ serve:
### CockroachDB
#
# If dsn is starting with cockroach:// CockroachDB will be used as storage backend:
-# dsn: dsn=cockroach://user:password@host:123/database
+# dsn: cockroach://user:password@host:123/database
#
dsn: memory
-# dsn: dsn=postgres://user:password@host:123/database
+# dsn: postgres://user:password@host:123/database
# dsn: mysql://user:password@tcp(host:123)/database
# webfinger configures ./well-known/ settings
