Improve Config index

Author: fdevans

docs/administration/configuration/index.md

@@ -1,14 +1,81 @@
 # Rundeck Configuration
 
-- [Configuration File Reference](/administration/configuration/config-file-reference.md)
-- [Database](/administration/configuration/database/index.md)
-- [Plugins](/administration/configuration/plugins/index.md)
-- [Remote Job Execution (Commercial)](/administration/configuration/remote-job-execution.md)
-- [Encryptable Config Properties (Commercial)](/administration/configuration/encryptable-properties.md)
-- [HashiCorp Consul (Commercial)](/administration/configuration/hashicorp-consul.md)
-- [Email Settings](/administration/configuration/email-settings.md)
-- [GUI Customization](/administration/configuration/gui-customization.md)
-- [Localization](/administration/configuration/localization.md)
-- [System Properties](/administration/configuration/system-properties.md)
-- [Storage Facility](/administration/configuration/storage-facility.md)
-- [Repository](/administration/configuration/repository.md)
+Configure Rundeck to meet your organization's needs with comprehensive options for database setup, plugins, Docker deployment, email notifications, and more.
+
+## Configuration File Reference
+
+Complete reference for all configuration properties available in `rundeck-config.properties`, `framework.properties`, and other configuration files.
+
+[View Configuration File Reference →](/administration/configuration/config-file-reference.md)
+
+## Database
+
+Configure Rundeck to use enterprise databases including MySQL, PostgreSQL, MS SQL Server, and Oracle for production deployments.
+
+[View Database Configuration →](/administration/configuration/database/)
+
+## Docker
+
+Configure Rundeck when running in Docker containers, including environment variables, volume mounts, and extending the Docker image.
+
+[View Docker Configuration →](/administration/configuration/docker)
+
+## Plugins
+
+Install, configure, and manage Rundeck plugins to extend functionality with integrations, workflows, notifications, and more.
+
+[View Plugin Configuration →](/administration/configuration/plugins/)
+
+## Remote Job Execution (Commercial)
+
+Configure remote job execution for distributed Rundeck installations in Rundeck Enterprise and Process Automation.
+
+[View Remote Job Execution →](/administration/configuration/remote-job-execution.md)
+
+## HashiCorp Consul (Commercial)
+
+Integrate with HashiCorp Consul for configuration management and service discovery in Rundeck Enterprise clusters.
+
+[View Consul Integration →](/administration/configuration/hashicorp-consul.md)
+
+## Email Settings
+
+Configure SMTP settings to enable email notifications for job executions, failures, and system alerts.
+
+[View Email Settings →](/administration/configuration/email-settings.md)
+
+## GUI Customization
+
+Customize the Rundeck user interface including logos, colors, themes, and branding to match your organization.
+
+[View GUI Customization →](/administration/configuration/gui-customization.md)
+
+## Localization
+
+Configure language and locale settings to display Rundeck in different languages and regional formats.
+
+[View Localization →](/administration/configuration/localization.md)
+
+## System Properties
+
+Configure JVM system properties and advanced settings to tune Rundeck's behavior and performance.
+
+[View System Properties →](/administration/configuration/system-properties.md)
+
+## Encryptable Properties (Commercial)
+
+Encrypt sensitive configuration properties in Rundeck Enterprise and Process Automation for enhanced security.
+
+[View Encryptable Properties →](/administration/configuration/encryptable-properties.md)
+
+## Storage Facility
+
+Configure Rundeck's storage facility for managing uploaded files, plugins, and other stored content.
+
+[View Storage Facility →](/administration/configuration/storage-facility.md)
+
+## Repository
+
+Configure artifact repository settings for plugin distribution and management across Rundeck instances.
+
+[View Repository Configuration →](/administration/configuration/repository.md)