[DOC] Add landing page for simplified exploration (#93515)

* Add landing page for simplified exploration

* shortened the sentences

* Apply suggestions from code review

* Apply suggestions from code review

---------

Co-authored-by: Mat Ryer <matryer@users.noreply.github.com>

docs/sources/explore/simplified-exploration/_index.md

@@ -7,6 +7,31 @@ keywords:
 title: Simplified exploration
 menuTitle: Simplified exploration
 weight: 100
+hero:
+  title: Simplified exploration with the Explore apps
+  level: 1
+  width: 100
+  height: 100
+  description: Use Explore Profiles to investigate and identify issues using profiling data.
+cards:
+  title_class: pt-0 lh-1
+  items:
+    - title: Explore Metrics
+      href: ./metrics/
+      description: Quickly find related metrics with a few clicks, without needing to write PromQL queries to retrieve metrics.
+      height: 24
+    - title: Explore Logs
+      href: ./logs/
+      description: Visualize log volumes to easily detect anomalies or significant changes over time, without needing to compose LogQL queries.
+      height: 24
+    - title: Explore Traces
+      href: ./traces/
+      description: Use Rate, Errors, and Duration (RED) metrics derived from traces to investigate and understand errors and latency issues within complex distributed systems.
+      height: 24
+    - title: Explore Profiles
+      href: ./profiles/
+      description: View and analyze high-level service performance, identify problem processes for optimization, and diagnose issues to determine root causes.
+      height: 24
 ---
 
 # Simplified exploration
@@ -15,4 +40,6 @@ Introducing the Grafana Explore apps, designed for effortless data exploration t
 
 Easily explore telemetry signals with these specialized tools, tailored specifically for the Grafana databases to provide quick and accurate insights.
 
-{{< section >}}
+## Explore
+
+{{< card-grid key="cards" type="simple" >}}