[doxygen] Took Sherm's suggestions "*an* inertial"
[doxygen] Took Sherm's suggestions "*an* inertial"
opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core