Update destroy.mdx

mention -target

website/docs/cli/commands/destroy.mdx

@@ -44,3 +44,14 @@ you the proposed destroy changes without executing them.
 -> **Note:** The `-destroy` option to `terraform apply` exists only in
 Terraform v0.15.2 and later. For earlier versions, you _must_ use
 `terraform destroy` to get the effect of `terraform apply -destroy`.
+
+## Options
+
+In exceptional circumstances, it may be useful to use the `-target` option. 
+This will destroy only a particular resource (and its dependencies):
+
+```
+terraform destroy -target RESOURCE_TYPE.NAME
+```
+
+For more about `-target`, see [`plan`](/cli/commands/plan).