UCS/LIST: Fix documentation.
UCS/LIST: Fix documentation.

shssf/ucx,abouteiller/ucx,sergsagal1/ucx_rocm,manjugv/ucx,sergsagal1/ucx_rocm,abouteiller/ucx,abouteiller/ucx,sergsagal1/ucx_rocm,shssf/ucx,abouteiller/ucx,shssf/ucx,manjugv/ucx,manjugv/ucx