Update _docs/concepts/build_system/external_build_systems/index.md

Co-authored-by: FranFin <58737168+FranFin@users.noreply.github.com>

Author: pablogs9

_docs/concepts/build_system/external_build_systems/index.md

@@ -9,7 +9,7 @@ Once you have read about the oficial[ **micro_ros_setup** tool](/docs/concepts/b
 
 The [micro-ROS component for ESP-IDF](https://github.com/micro-ROS/micro_ros_espidf_component) allows to integrate micro-ROS as a component in an Espressif ESP-IDF Build System. This component allows the user to integrate the micro-ROS API and utilities in an already created ESP-IDF project just by cloning or copying a folder. 
 
-The procedure for configuring the built micro-ROS library is based in `colcon.meta`. For more details visit the [Github repository](https://github.com/micro-ROS/micro_ros_espidf_component).
+Configuration of the micro-ROS library is based on the `colcon.meta` file. For more details visit the [Github repository](https://github.com/micro-ROS/micro_ros_espidf_component).
 
 ## micro-ROS module for Zephyr
 
@@ -21,4 +21,4 @@ The procedure for configuring the built micro-ROS library is based in `colcon.me
 
 The [micro-ROS for Arduino](https://github.com/micro-ROS/micro_ros_arduino) support package is a special port of micro-ROS provided as a set of precompiled libraries for specific platforms. The main reason of this approach is that Arduino does not allow the build of a complex library such as micro-ROS, so by using this solution a ready-to-use solution is provided to the Arduino users.
 
-Along with this support package there are [detailed instructions](https://github.com/micro-ROS/micro_ros_arduino#how-to-build-the-precompiled-library) for rebuilding the micro-ROS for Arduino libraries for users that need to tune the default configuration.
+Along with this support package there are [detailed instructions](https://github.com/micro-ROS/micro_ros_arduino#how-to-build-the-precompiled-library) for rebuilding the micro-ROS for Arduino libraries for users that need to tune the default configuration.