README.md in acfs-0.34.1.1.b289 vs README.md in acfs-0.35.0

@@ -280,10 +280,27 @@
   Acfs.run             # Would have raised Acfs::RealRequestNotAllowedError
                        # Will run real request to user service instead.
 end
 ```
 
+## Instrumentation
+
+Acfs supports [instrumentation via active support][1].
+
+Acfs expose to following events
+
+* `acfs.operation.complete(operation, response)`: Acfs operation completed
+* `acfs.runner.sync_run(operation)`: Run operation right now skipping queue.
+* `acfs.runner.enqueue(operation)`: Enqueue operation to be run later.
+* `acfs.before_run`: directly before `acfs.run`
+* `acfs.run`: Run all queued operations.
+
+Read [official guide][2] to see to to subscribe.
+
+[1]: http://guides.rubyonrails.org/active_support_instrumentation.html
+[2]: http://guides.rubyonrails.org/active_support_instrumentation.html#subscribing-to-an-event
+
 ## Roadmap
 
 * Update
     * Better new? detection eg. storing ETag from request resources.
     * Use PATCH for with only changed attributes and `If-Unmodifed-Since`
@@ -311,9 +328,10 @@
 
 ## Contributors
 
 * [Nicolas Fricke](https://github.com/nicolas-fricke)
 * [Tino Junge](https://github.com/tino-junge)
+* [Malte Swart](https://github.com/mswart)
 
 ## License
 
 MIT License