How do you add an external link in Splunk Monitoring Console Health Check checklist.conf

[panguy]

I'm trying to figure out how do we add an external link to documentation in checklist.conf. This is for a healthcheck that will be run in the Splunk Monitoring Console.

Here is an example from the System Hardware provisioning assessment health check:

[system_hardware_provisioning_assessment]
title = System hardware provisioning assessment
category = System and Environment
tags = best_practices, capacity, scalability
description = This evaluates the hardware specifications of Splunk instances tasked with indexing and/or searching data, using reference hardware.
failure_text = One or more hosts has returned CPU or memory specifications that fall below reference hardware recommendations. This might adversely affect indexing or search performance.
suggested_action = If you are experiencing performance issues, consider upgrading hosts to meet or exceed the recommended hardware specs.
doc_link = healthcheck.hardware.reference
doc_title = recommended minimum hardware
applicable_to_groups = dmc_group_search_head,dmc_group_indexer
search = | rest $rest_scope$ /services/server/info \
| eval cpu_core_count = if(isnotnull(numberOfVirtualCores), numberOfVirtualCores, numberOfCores) \
| eval physical_memory_GB = round(physicalMemoryMB / 1024, 0) \
| fields splunk_server cpu_core_count physical_memory_GB \
| eval severity_level = case(cpu_core_count <= 4 OR physical_memory_GB <= 4, 2, cpu_core_count < 12 OR physical_memory_GB < 12, 1, cpu_core_count >= 12 AND physical_memory_GB >= 12, 0, true(), -1) \
| rename splunk_server AS instance cpu_core_count AS "cpu_core_count (current / recommended)" physical_memory_GB AS "physical_memory_GB (current / recommended)" \
| fieldformat cpu_core_count (current / recommended) = 'cpu_core_count (current / recommended)'." / 12" \
| fieldformat physical_memory_GB (current / recommended) = 'physical_memory_GB (current / recommended)'." / 12"

the doc_link isn't a URL but it does link to :

https://docs.splunk.com/Documentation/Splunk/9.0.4/Capacity/Referencehardware?ref=hk

How  can I link to an external doc?