more changes to ATM source and doc file

.github/CODEOWNERS

cmake/CMakeLists.txt

cmake/README.md

cmake/etc/profile.d/lammps.csh.in

cmake/etc/profile.d/lammps.sh.in

doc/Makefile

doc/src/Commands.txt

doc/src/Commands_all.txt

doc/src/Commands_bond.txt

doc/src/Commands_category.txt

doc/src/Commands_compute.txt

doc/src/Commands_fix.txt

doc/src/Commands_input.txt

doc/src/Commands_kspace.txt

doc/src/Commands_pair.txt

doc/src/Commands_parse.txt

doc/src/Commands_structure.txt

doc/src/Eqs/pair_spin_dmi_forces.jpg

doc/src/Eqs/pair_spin_dmi_forces.tex

doc/src/Eqs/pair_spin_dmi_interaction.jpg