Doc: Organized the Getting Started section (#39813)

* First commit with reorganized and updated content.

* Updated Getting started topic.

* Changed some wording.

* Removed extra word "setting".

* Update docs/sources/getting-started/getting-started-prometheus.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Update docs/sources/getting-started/getting-started-prometheus.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Updated doc based on review.

* Fix linting errors

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>
Co-authored-by: Piotr Jamróz <pm.jamroz@gmail.com>

docs/sources/shared/basics/grafana-cloud.md

@@ -4,6 +4,6 @@ title: Grafana Cloud
 
 ## Grafana Cloud
 
-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.
+Grafana Cloud is a highly available, fast, fully managed OpenSaaS logging and metrics platform. It is 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/) or try the [Grafana Cloud Linux host quickstart](/docs/grafana-cloud/quickstart/).
+[Learn more about Grafana Cloud](https://grafana.com/cloud/) and get started with your [free account with Grafana Cloud](https://grafana.com/signup/cloud/connect-account?pg=gsdocs) that includes a robust free tier with access to 10k metrics, 50GB logs, 50GB traces, 2 weeks data retention and 3 users.

docs/sources/shared/basics/grafana-enterprise.md

@@ -4,8 +4,6 @@ title: Grafana Enterprise
 
 ## Grafana Enterprise
 
-[Grafana Enterprise]({{< relref "../../enterprise/_index.md" >}}) is a commercial edition of Grafana that includes additional features not found in the open source version.
+Grafana Enterprise is the commercial edition of Grafana that includes additional features not found in the open source version. Building on everything you already know and love about Grafana, Grafana Enterprise adds enterprise data sources, advanced authentication options, more permission controls, 24x7x365 support, and training from the core Grafana team.
 
-Building on everything you already know and love about Grafana, Grafana Enterprise adds enterprise data sources, advanced authentication options, more permission controls, 24x7x365 support, and training from the core Grafana team.
-
-[Learn more about Grafana Enterprise](https://grafana.com/enterprise). To purchase Enterprise or obtain a trial license, contact the Grafana Labs [Sales Team](https://grafana.com/contact?about=support&topic=Grafana%20Enterprise).
+[Learn more about Grafana Enterprise](https://grafana.com/enterprise) and contact the Grafana Labs [Sales Team](https://grafana.com/contact?about=support&topic=Grafana%20Enterprise) to purchase an Enterprise license. You can also obtain a trial license before the purchase.

docs/sources/shared/basics/what-is-grafana.md

@@ -1,7 +1,15 @@
 ---
-title: What is Grafana?
+title: Grafana Open Source
 ---
 
-## What is Grafana?
+## Grafana Open Source
 
-Grafana is open source visualization and analytics software. It allows you to query, visualize, alert on, and explore your metrics no matter where they are stored. In plain English, it provides you with tools to turn your time-series database (TSDB) data into beautiful graphs and visualizations.
+Grafana open source is open source visualization and analytics software. It allows you to query, visualize, alert on, and explore your metrics, logs, and traces no matter where they are stored. It provides you with tools to turn your time-series database (TSDB) data into insightful graphs and visualizations.
+
+### Grafana Loki
+
+Grafana Loki is an open source, set of components that can be composed into a fully featured logging stack. For more information, refer to [Loki documentation](https://grafana.com/docs/loki/latest/).
+
+### Grafana Tempo
+
+Grafana Tempo is an open source, easy-to-use and high-volume distributed tracing backend. For more information, refer to [Tempo documentation](https://grafana.com/docs/tempo/latest/?pg=oss-tempo&plcmt=hero-txt/).

docs/sources/shared/getting-started/first-step.md

@@ -9,5 +9,3 @@ Use the instructions in [Getting started with Grafana]({{< relref "../../getting
 - Install Grafana.
 - Log in to Grafana.
 - Create your first dashboard.
-
-You can also configure a [Grafana Cloud](https://grafana.com/docs/grafana-cloud/) instance to display system metrics without having to host Grafana yourself.