Invalid link on wed documentation

Hi,

This is to report an invalid link on http://lammps.sandia.gov/doc/units.html, in the contents for unit LJ, the link for thermo_modify norm should be
http://lammps.sandia.gov/doc/thermo_modify.html
instead of
http://lammps.sandia.gov/doc/therm_modify.html

Best
Ming