Fix readme rosdep (#506) (#508)

Signed-off-by: Pablo Garrido <pablogs9@gmail.com>
(cherry picked from commit c546b01)

Co-authored-by: Pablo Garrido <pablogs9@gmail.com>

Author: mergify[bot]

README.md

@@ -99,7 +99,7 @@ mkdir uros_ws && cd uros_ws
 
 git clone -b $ROS_DISTRO https://github.com/micro-ROS/micro_ros_setup.git src/micro_ros_setup
 
-rosdep update && rosdep install --from-path src --ignore-src -y
+rosdep update && rosdep install --from-paths src --ignore-src -y
 
 colcon build