docs: add note about contacting sales team for qr code registration a…

…pp (#3062) (#3100)

* docs: add note about contacting sales team for qr code registration app

* docs: clarifies that the repo is private

* docs: remove link to repo

* docs: add clone instruction

---------

Co-authored-by: Lenny Chen <lenny.chen@spectrocloud.com>
(cherry picked from commit 9656f28)

Co-authored-by: Lenny Chen <55669665+lennessyy@users.noreply.github.com>

docs/docs-content/clusters/edge/site-deployment/site-installation/edge-host-registration.md

@@ -196,9 +196,8 @@ App is built on Next.js and deployed using the Vercel platform.
 
 Use the following steps to enable this workflow.
 
-<br />
-
-1. Clone the repository.
+1. Contact [Spectro Cloud Support](mailto:support@spectrocloud.com) for access to the Palette Edge Registration App
+   repository. Clone the repository.
 
 2. Configure Vercel or your hosting provider to [automatically deploy](https://vercel.com/docs/concepts/deployments/git)
    pull requests against the main branch.