Add option to readme

README.md

@@ -105,6 +105,7 @@ You should use the same method that you used to give the agent the app id and se
 | stalledTimeout             | STALLED_TIMEOUT                       | 1800000 (30m)               | Timeout used to detect when methods and subscriptions might be stalled (have been running for a long time and might never return). The value is in milliseconds, and can be disabled by setting it to 0 |
 | proxy                      | MONTI_OPTIONS_PROXY                   | none                        | Allows you to connect to Monti APM using a proxy                                                                                                                                                        |
 | disableInstrumentation | DISABLE_INSTRUMENTATION | false                     | Disables recording most metrics and traces. Can be configured using Meteor.settings, or by env variable |
+| disableAwaitDetector | DISABLE_AWAIT_DETECTOR | false                     | Disables recording of async events in traces.
 
 
 ### Traces