Update _docs/tutorials/core/first_application_rtos/index.md

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

Author: 2 people

_docs/tutorials/core/first_application_rtos/index.md

@@ -206,7 +206,7 @@ cd uros_ws/firmware/NuttX
 make savedefconfig
 ```
 
-This will generate a file called ``defconfig`` inside of ``uros_ws/firmware/NuttX``. This file is a config profile with all the required configuration to run your specific configuration which includes your application.
+This will generate a file called ``defconfig`` inside of ``uros_ws/firmware/NuttX``. This file is a config profile with all the configuration required to run your specific application.
 
 Finally create a folder called ``uros_pingpong`` into ``uros_ws/firmware/NuttX/configs/olimex-stm32-e407`` and move the defconfig file to uros_pingpong folder so you can execute: