Updated README.md for the interbotix_xsarm_gravity_compensation package

added link to the doc page with a example motor specs configuration

Author: Shiming-Liang

interbotix_ros_xsarms/examples/interbotix_xsarm_gravity_compensation/README.md

@@ -5,7 +5,7 @@ This package demos the interbotix_gravity_compensation package on an Interbotix
 As of now, the supported arms include: WidowX-250 6DOF and ALOHA WidowX-250 6DOF.
 
 ## Configuration
-Please refer to the documentations for [`mode_configs`](https://docs.trossenrobotics.com/interbotix_xsarms_docs/ros_interface/ros2/config.html#mode-configs) and [`motor_specs`](TO DO: Add link to the doc) for details.
+Please refer to the documentations for [`mode_configs`](https://docs.trossenrobotics.com/interbotix_xsarms_docs/ros_interface/ros2/config.html#mode-configs) and [`motor_specs`](https://docs.trossenrobotics.com/interbotix_xsarms_docs/ros2_packages/gravity_compensation.html#configuration) for details.
 
 ## Usage
 Run the following launch command where `robot_model` is a mandatory choice between `aloha_wx250s` and `wx250s`, `robot_name` defaults to be the same as `robot_model` but can be anything, `motor_specs` defaults to `<path_to_this_package>/config/motor_specs_<robot_model>.yaml`, and `mode_configs` defaults to `<path_to_this_package>/config/mode_configs_<robot_model>.yaml`: