Update README.md

README.md

@@ -56,7 +56,7 @@ Everything is a component. We happily [nodelet everything](https://www.clearpath
 * [X] **Service server** - works fine
 * [ ] **Timers** - single timer works fine, similarly to ROS1 Timers
   * [ ] TODO still problem with multiple timers in parallel, recent (last active 2021/01/15) and related issues [Avoid timers to be executed twice in the multithreaded executor #1328](https://github.com/ros2/rclcpp/pull/1328) and [Allow timers to keep up the intended rate in MultiThreadedExecutor #1516](https://github.com/ros2/rclcpp/pull/1516) tell me that it is not settled how they should behave ?!?
-* [X] **Parameters**
+* [ ] **Parameters**
   * [X] basic params work from *yaml* and *launch*
   * [X] **Beware!** loading an empty *yaml* file causes a long and cryptic error. **Solution:** add some random unused parameter.
   * [X] Nesting is distinguished by "." in the code (it was "/" in ROS1)