Add Consul ESM to Consul Tools page

website/pages/docs/download-tools.mdx

@@ -16,6 +16,7 @@ From this page you can download various tools for Consul. These tools are mainta
 These Consul tools are created and managed by the dedicated engineers at HashiCorp:
 
 - [Envconsul](https://github.com/hashicorp/envconsul) - Read and set environmental variables for processes from Consul.
+- [Consul ESM](https://github.com/hashicorp/consul-esm) - Provides external service monitoring for Consul. A tutorial is available on [HashiCorp Learn](https://learn.hashicorp.com/tutorials/consul/service-registration-external-services).
 - [Consul Migrate](https://github.com/hashicorp/consul-migrate) - Data migration tool to handle Consul upgrades to 0.5.1+
 - [Consul Replicate](https://github.com/hashicorp/consul-replicate) - Consul cross-DC KV replication daemon.
 - [Consul Template](https://github.com/hashicorp/consul-template) - Generic template rendering and notifications with Consul. A step by step tutorial is available on [HashiCorp Learn](https://learn.hashicorp.com/tutorials/consul/consul-template).