(AzureCXP) fixes MicrosoftDocs/azure-docs#104176

* adds additional information describing condition when the output file is empty
* updates the last step to "deploy ARM temple" method, instead of manually creating DCR method.

Author: AnuragSingh-MSFT

articles/azure-monitor/agents/azure-monitor-agent-migration-tools.md

@@ -86,4 +86,6 @@ To install DCR Config Generator:
 	- Windows ARM template and parameter files - if the target workspace contains Windows performance counters or Windows events.
 	- Linux ARM template and parameter files - if the target workspace contains Linux performance counters or Linux Syslog events.
 
-1. Use the built-in rule association policies to [associate the generated data collection rules with virtual machines](./data-collection-rule-azure-monitor-agent.md#create-a-data-collection-rule) running the new agent.
+	If the Log Analytics workspace was not [configured to collect data](./log-analytics-agent#data-collected) from connected agents, the generated files will be empty. This would mean that the agent was connected to Log Analytics workspace, but was not configured to send any data from the host machine.
+
+1. [Deploy the generated ARM template](../../azure-resource-manager/templates/deployment-tutorial-local-template) to associate the generated data collection rules with virtual machines running the new agent.