Docs: Add Cloud content links (#29317)

* Update _index.md

* Update _index.md

* Update _index.md

* Update _index.md

* changed link format

docs/sources/getting-started/_index.md

@@ -78,7 +78,7 @@ When organizations have one Grafana and multiple teams, they often want the abil
 
 Grafana Cloud is a highly available, fast, fully managed OpenSaaS logging and metrics platform. Everything you love about Grafana, but Grafana Labs hosts it for you and handles all the headaches.
 
-[Learn more about Grafana Cloud.](https://grafana.com/cloud/)
+[Learn more about Grafana Cloud](https://grafana.com/cloud/) or try the [Grafana Cloud Linux host Quickstart](/docs/grafana-cloud/quickstart/).
 
 ## Grafana Enterprise