Add SF linux to automatic-extension-upgrade.md

Author: apatrush

articles/virtual-machines/automatic-extension-upgrade.md

@@ -73,6 +73,7 @@ Automatic Extension Upgrade supports the following extensions (and more are adde
 - [Azure Monitor Agent](../azure-monitor/agents/azure-monitor-agent-overview.md)
 - [Log Analytics Agent for Linux](../azure-monitor/agents/log-analytics-agent.md)
 - [Azure Diagnostics extension for Linux](../azure-monitor/agents/diagnostics-extension-overview.md)
+- Service Fabric – [Linux](../service-fabric/service-fabric-tutorial-create-vnet-and-linux-cluster.md#service-fabric-extension)
 
 
 ## Enabling Automatic Extension Upgrade