Created entry for real-time executor

ralph-lange · ralph-lange · commit 6feb24ad15e3 · 2018-12-12T16:26:32.000+01:00
Signed-off-by: Ralph Lange &lt;ralph.lange@de.bosch.com&gt;
diff --git a/index.md b/index.md
@@ -16,13 +16,14 @@ We'll update this README as we proceed. For now, you can check out our work on:
  - Library to support the implementation of language-specific ROS Client Libraries: [rcl](https://github.com/microROS/rcl)
  - Real-Time Operating System: [https://github.com/microROS/NuttX](https://github.com/microROS/NuttX)
  - Micro-ROS in RTOS example applications: [apps](https://github.com/microROS/apps)
+ - Predictable scheduling and execution:  [real-time_executor](real-time_executor/)
  - System modes and system hierarchy: [micro-system-modes](https://github.com/microROS/system_modes)
  - Reference hardware: [https://github.com/microROS/hardware](https://github.com/microROS/hardware)
  - Build infrastructure for embedded development using docker: [https://github.com/microROS/docker](https://github.com/microROS/docker)
 
 ### Interoperability
 
-In the road-map of the project, interoperability tasks are also considered. Apart from ROS (1) and ROS 2, [H-ROS](https://acutronicrobotics.com/modularity/H-ROS/) interoperability is going to be also granted, thanks to HRIM.  [HRIM](https://acutronicrobotics.com/modularity/hrim/) is an information model for robots that facilitates interoperability among modules from different vendors of robot hardware. 
+In the road-map of the project, interoperability tasks are also considered. Apart from ROS (1) and ROS 2, [H-ROS](https://acutronicrobotics.com/modularity/H-ROS/) interoperability is going to be also granted, thanks to HRIM.  [HRIM](https://acutronicrobotics.com/modularity/hrim/) is an information model for robots that facilitates interoperability among modules from different vendors of robot hardware.
 
 ### Architecture
 The micro-ROS architecture is a work in progress. It's modular and built with the following ingredients:
