fix broken and inconsistent links in the manual

"helix (o)"_dihedral_helix.html,

"multi/harmonic (o)"_dihedral_multi_harmonic.html,

"nharmonic (o)"_dihedral_nharmonic.html,

"opls (iko)"_dihedral_opls.htm;,

"opls (iko)"_dihedral_opls.html,

"quadratic (o)"_dihedral_quadratic.html,

"spherical (o)"_dihedral_spherical.html,

"table (o)"_dihedral_table.html,

The advantage of these fixes is that those which thermostat the

particles include the rotational degrees of freedom in the temperature

calculation and thermostatting.  The "fix langevin"_fix_langevin

calculation and thermostatting.  The "fix langevin"_fix_langevin.html

command can also be used with its {omgea} or {angmom} options to

thermostat the rotational degrees of freedom for spherical or

ellipsoidal particles.  Other thermostatting fixes only operate on the

"Section 2.6 -sf gpu"_Run_options.html

"Section 2.6 -pk gpu"_Run_options.html

"package gpu"_package.html

"Commands all"_Commands_all.html pages (pair,kspace) for styles followed by (g)

"Commands all"_lc pages (pair,kspace) for styles followed by (g)

"Benchmarks page"_http://lammps.sandia.gov/bench.html of web site :ul

:line

"Section 2.6 -sf kk"_Run_options.html

"Section 2.6 -pk kokkos"_Run_options.html

"package kokkos"_package.html

"Commands all"_Commands_all.html pages (fix,compute,pair,etc) for styles followed by (k)

"Commands all"_lc pages (fix,compute,pair,etc) for styles followed by (k)

"Benchmarks page"_http://lammps.sandia.gov/bench.html of web site :ul

:line

"Section 2.6 -sf intel"_Run_options.html

"Section 2.6 -pk intel"_Run_options.html

"package intel"_package.html

"Commands all"_Commands_all.html pages (fix,compute,pair,etc) for styles followed by (i)

"Commands all"_lc pages (fix,compute,pair,etc) for styles followed by (i)

src/USER-INTEL/TEST

"Benchmarks page"_http://lammps.sandia.gov/bench.html of web site :ul

"Section 2.6 -sf omp"_Run_options.html

"Section 2.6 -pk omp"_Run_options.html

"package omp"_package.html

"Commands all"_Commands_all.html pages (fix,compute,pair,etc) for styles followed by (o)

"Commands all"_lc pages (fix,compute,pair,etc) for styles followed by (o)

"Benchmarks page"_http://lammps.sandia.gov/bench.html of web site :ul

:line

The "fix python/invoke"_fix_python_invoke.html command can execute

Python code at selected timesteps during a simulation run.

The "pair_style python"_pair_python command allows you to define

The "pair_style python"_pair_python.html command allows you to define

pairwise potentials as python code which encodes a single pairwise

interaction.  This is useful for rapid-developement and debugging of a

new potential.

styles when USER-INTEL styles are not available.

NOTE: For simulations on higher node counts, add "processors * * * 

grid numa"_processors.html" to the beginning of the input script for

grid numa"_processors.html to the beginning of the input script for

better scalability.

When running on many nodes, performance might be better when using