docs: added documentation for assets path #375

Job	Run time
pythonpackage	2m 57s
check-paths	7s
build_cpp_extensions (rcs_panda)	3m 14s
build_cpp_extensions (rcs_fr3)	3m 15s
build_cpp_extensions (rcs_so101)	2m 59s
build_extensions (rcs_usb_cam)	2m 25s
build_extensions (rcs_tacto)	2m 40s
build_cpp_extensions (rcs_robotics_library)	3m 13s
build_extensions (rcs_robotiq2f85)	2m 8s
build_extensions (rcs_xarm7)	2m 4s
build_extensions (rcs_realsense)	2m 6s
	27m 8s

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