add instruction for digital ocean (#23)

## Description
Add a line clarifying how to get your `magic-id` from digital ocean

## Motivation and Context
Add clarity to the docs.

## Types of changes
<!-- What types of changes does your code introduce? Put an `x` in all
the boxes that apply: -->
- [X] Edits to existing documentation
- [ ] Changing documentation structure (relocating existing files,
ensure redirects exist)
- [ ] Stylistic changes (provide screenshots above)

Co-authored-by: Camila Ramos <cami@Camilas-MacBook-Pro.local>

docs/dusknet/cloud-rollup-deployment/1-digital-ocean.md

@@ -19,6 +19,9 @@ You must also install and configure `doctl`: https://docs.digitalocean.com/refer
 
 ## Configure `kubectl` with `doctl`
 
+In your Digital Ocean control panel, navigate to "Connecting to Kubernetes." Run the following command with the `magic-id` 
+generated for you.
+
 ```bash
 doctl kubernetes cluster kubeconfig save <magic-id>
 ```