Docs: added content to _index.md pages (#24949)

docs/sources/dashboards/_index.md

@@ -5,3 +5,7 @@ type = "docs"
 identifier = "dashboards"
 weight = 4
 +++
+
+# Dashboard overview
+
+A *dashboard* is a set of one or more panels organized and arranged into one or more rows. Grafana ships with a variety of Panels. Grafana makes it easy to construct the right queries, and customize the display properties so that you can create the perfect dashboard for your need. Each panel can interact with data from any configured Grafana Data Source (currently Graphite, Prometheus, Elasticsearch, InfluxDB, OpenTSDB, MySQL, PostgreSQL, Microsoft SQL Server and AWS Cloudwatch).
\ No newline at end of file

docs/sources/developers/_index.md

@@ -2,3 +2,7 @@
 title = "Developers"
 type = "docs"
 +++
+
+# Developers
+
+This section of the documentation contains pages with resources for Grafana developers.
\ No newline at end of file

docs/sources/features/_index.md

@@ -8,4 +8,6 @@ identifier = "features"
 weight = 4
 +++
 
+# Grafana features
 
+This section contains pages that describe Grafana features.

docs/sources/features/dashboard/_index.md

@@ -6,3 +6,7 @@ identifier = "dashboard_features"
 parent = "features"
 weight = 4
 +++
+
+# Dashboard overview
+
+A *dashboard* is a set of one or more panels organized and arranged into one or more rows. Grafana ships with a variety of Panels. Grafana makes it easy to construct the right queries, and customize the display properties so that you can create the perfect dashboard for your need. Each panel can interact with data from any configured Grafana Data Source (currently Graphite, Prometheus, Elasticsearch, InfluxDB, OpenTSDB, MySQL, PostgreSQL, Microsoft SQL Server and AWS Cloudwatch).
\ No newline at end of file

docs/sources/guides/_index.md

@@ -7,3 +7,6 @@ identifier = "guides"
 weight = 3
 +++
 
+# Guides
+
+This section contains guides to help you use Grafana.
\ No newline at end of file

docs/sources/reference/_index.md

@@ -4,4 +4,6 @@ description: Grafana docs reference
 type: docs
 ---
 
-# Documentation
+# References
+
+This section contains reference pages for Grafana features.

docs/sources/sharing/_index

++++
+title = "Sharing"
+weight = 4
+draft = "true"
++++
+
+# Sharing
+
+This section contains pages that will help you share Grafana visualizations.
\ No newline at end of file

docs/sources/whatsnew/index.md

@@ -6,4 +6,6 @@ identifier = "whatsnew"
 weight = 5
 +++
 
+# What's New
 
+This section contains pages with Grafana release notes.