Docs: On-prem license management (#103648)

* -Customer editing of on-prem license docs

* -Vale fix

* -Add note about editing license name

* Update docs/sources/administration/enterprise-licensing/_index.md

Co-authored-by: Jacob Valdez <jacob.valdez@grafana.com>

* Update docs/sources/administration/enterprise-licensing/_index.md

Co-authored-by: Jacob Valdez <jacob.valdez@grafana.com>

* Update docs/sources/administration/enterprise-licensing/_index.md

Co-authored-by: Jacob Valdez <jacob.valdez@grafana.com>

* Update docs/sources/administration/enterprise-licensing/_index.md

Co-authored-by: Jacob Valdez <jacob.valdez@grafana.com>

---------

Co-authored-by: Jacob Valdez <jacob.valdez@grafana.com>

docs/sources/administration/enterprise-licensing/_index.md

@@ -41,6 +41,11 @@ To download your Grafana Enterprise license:
 
 1. Sign in to your [Grafana Cloud](/) account.
 1. Go to **My Account** and select an organization from the drop-down menu at the top left of the page. On the Overview page for each organization, you can see a section for Grafana Enterprise licenses. Click **Details** next to a license.
+1. If the license shows "License not configured" or if the URL is listed as "-", you need to update the details. This requires the Admin role.
+   1. Click **Update** next to License Details. _If the **Update** button isn't visible, contact the Grafana account team._
+   1. Enter the URL. It must match the effective [`root_url`](https://grafana.com/docs/grafana/<GRAFANA_VERSION>/setup-grafana/configure-grafana/#root_url) configuration setting (including the trailing slash) of the Grafana Enterprise instance. It should be the URL that users type in their browsers to access the frontend, not the node hostname. The URL must start with "https://", and it can't be `localhost` or contain wildcards.
+   1. (Optional) Edit the license name. This name is only used for display purposes.
+   1. Click **Save**.
 1. At the bottom of the license details page, select **Download token** to download the `license.jwt` file that contains your license.
 
 ### Step 2. Add your license to a Grafana instance