Add telemetry command

Author: williammartin

pkg/cmd/root/help_topic.go

@@ -127,6 +127,16 @@ var HelpTopics = []helpTopic{
 			a textual progress indicator.
 		`, "`"),
 	},
+	{
+		name:  "telemetry",
+		short: "Information about telemetry in gh",
+		long: heredoc.Doc(`
+			gh collects telemetry to help us understand how the CLI is being used and to improve it.
+
+			To learn more about what data is collected, how it is used, and how to opt out, see:
+			<https://cli.github.com/telemetry>
+		`),
+	},
 	{
 		name:  "reference",
 		short: "A comprehensive reference of all gh commands",