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

FranFin · pablogs9 · web-flow · commit 6d37dfccd7f7 · 2021-03-30T12:11:07.000+02:00
Co-authored-by: Pablo Garrido &lt;pablogs9@gmail.com&gt;
diff --git a/_docs/concepts/build_system/external_build_systems/index.md b/_docs/concepts/build_system/external_build_systems/index.md
@@ -27,4 +27,4 @@ Along with this support package, there are [detailed instructions](https://githu
 
 The [micro-ROS for STM32CubeMX](https://github.com/micro-ROS/micro_ros_stm32cubemx_utils) package is a set of utilities which enables the seamless configuration, set-up and integration of micro-ROS into an STM32 controller based project. As such, it allows micro-ROS to be virtually supported by the full set of boards offered by <a href="https://www.st.com/content/st_com/en.html">STMicroelectronics</a>.
 
-Its usage is based on Dockers, via a prepared [Dockerfile](https://github.com/micro-ROS/micro_ros_stm32cubemx_utils/blob/foxy/microros_component/Dockerfile) which eases the project configuration and execution.
+Its usage is based on Dockers, via a prepared [Dockerfile](https://github.com/micro-ROS/micro_ros_stm32cubemx_utils/blob/foxy/microros_component/Dockerfile) which eases micro-ROS library generation outside of a ROS 2 environment.

Original file line number	Diff line number	Diff line change
`@@ -27,4 +27,4 @@ Along with this support package, there are [detailed instructions](https://githu`
`27`	`27`
`28`	`28`	`The [micro-ROS for STM32CubeMX](https://github.com/micro-ROS/micro_ros_stm32cubemx_utils) package is a set of utilities which enables the seamless configuration, set-up and integration of micro-ROS into an STM32 controller based project. As such, it allows micro-ROS to be virtually supported by the full set of boards offered by <a href="https://www.st.com/content/st_com/en.html">STMicroelectronics</a>.`
`29`	`29`
`30`		`-Its usage is based on Dockers, via a prepared [Dockerfile](https://github.com/micro-ROS/micro_ros_stm32cubemx_utils/blob/foxy/microros_component/Dockerfile) which eases the project configuration and execution.`
	`30`	`+Its usage is based on Dockers, via a prepared [Dockerfile](https://github.com/micro-ROS/micro_ros_stm32cubemx_utils/blob/foxy/microros_component/Dockerfile) which eases micro-ROS library generation outside of a ROS 2 environment.`