Merge pull request #235568 from dominicbetts/central-fixes

IoT Central: improve links

Author: prmerger-automator[bot]

articles/iot-central/core/overview-iot-central-solution-builder.md

@@ -120,8 +120,6 @@ You can use the data export and rules capabilities in IoT Central to integrate w
 - [Extend Azure IoT Central with custom rules using Stream Analytics, Azure Functions, and SendGrid](howto-create-custom-rules.md)
 - [Extend Azure IoT Central with custom analytics using Azure Databricks](howto-create-custom-analytics.md)
 
-You can use IoT Edge devices connected to your IoT Central application to integrate with [Azure Video Analyzer](/previous-versions/azure/azure-video-analyzer/video-analyzer-docs/articles/azure-video-analyzer/video-analyzer-docs/overview).
-
 ## Integrate with companion applications
 
 IoT Central provides rich operator dashboards and visualizations. However, some IoT solutions must integrate with existing applications, or require new companion applications to expand their capabilities. To integrate with other applications, use IoT Central extensibility points such as the REST API and the continuous data export feature.

articles/iot/iot-overview-analyze-visualize.md

@@ -24,7 +24,7 @@ In Azure IoT, analysis and visualization services are used to identify and displ
 
 ## Azure Digital Twins
 
-The Azure Digital Twins service lets you build and maintain models that are live, up-to-date representations of the real world. You can query, analyze, and generate visualizations from these models to extract business insights. An example model might be a representation of a building that includes information about the rooms, the devices in the rooms, and the relationships between the rooms and devices. The real-world data that populates these models is typically collected from IoT devices and sent through an IoT hub.
+The [Azure Digital Twins](../digital-twins/overview.md) service lets you build and maintain models that are live, up-to-date representations of the real world. You can query, analyze, and generate visualizations from these models to extract business insights. An example model might be a representation of a building that includes information about the rooms, the devices in the rooms, and the relationships between the rooms and devices. The real-world data that populates these models is typically collected from IoT devices and sent through an IoT hub.
 
 ## External services