Docs: Introduction topic title update (#73702)

updates introduction topic title to be consistent with Grafana Cloud and other products

docs/sources/fundamentals/_index.md

@@ -7,11 +7,11 @@ labels:
     - cloud
     - enterprise
     - oss
-title: Fundamentals
+title: Introduction
 weight: 8
 ---
 
-# Fundamentals
+# Introduction
 
 This section provides basic information about observability topics in general and Grafana in particular. These topics will help people who are just starting out with observability and monitoring.
 

docs/sources/introduction/_index.md

@@ -8,11 +8,11 @@ labels:
     - cloud
     - enterprise
     - oss
-title: Introduction to Grafana
+title: About Grafana
 weight: 5
 ---
 
-# Introduction to Grafana
+# About Grafana
 
 [Grafana open source software](/oss/) enables you to query, visualize, alert on, and explore your metrics, logs, and traces wherever they are stored. Grafana OSS provides you with tools to turn your time-series database (TSDB) data into insightful graphs and visualizations. The Grafana OSS plugin framework also enables you to connect other data sources like NoSQL/SQL databases, ticketing tools like Jira or ServiceNow, and CI/CD tooling like GitLab.