Update telemetry.md

(cherry picked from commit 2b62b55)

Author: ospillinger

docs/cluster-management/telemetry.md

@@ -1,10 +1,10 @@
 # Telemetry
 
-By default, the Cortex CLI sends anonymous usage data to Cortex Labs.
+By default, Cortex sends anonymous usage data to Cortex Labs.
 
 ## What data is collected?
 
-If telemetry is enabled, each time you run a command an event will be sent with a randomly generated unique CLI ID and the name of the command. For example, if you run `cortex deploy`, Cortex Labs will receive an event of the structure {id: 1234, command: "deploy"}.
+If telemetry is enabled, events and errors are collected. Each time you run a command an event will be sent with a randomly generated unique CLI ID and the name of the command. For example, if you run `cortex deploy`, Cortex Labs will receive an event of the structure {id: 1234, command: "deploy"}. In addition, the operator sends heartbeats that include cluster metrics like the types of instances running in your cluster.
 
 ## Why is this data being collected?