Merge pull request #23 from akohlmey/doc-corrections-and-updates

doc/html/Manual.html

doc/html/Section_accelerate.html

doc/html/Section_commands.html

doc/html/Section_errors.html

doc/html/Section_example.html

doc/html/Section_howto.html

doc/html/Section_modify.html

doc/html/Section_packages.html

doc/html/Section_python.html

doc/html/Section_start.html

doc/html/Section_tools.html

doc/html/accelerate_gpu.html

doc/html/accelerate_intel.html

doc/html/accelerate_kokkos.html

doc/html/accelerate_omp.html

doc/html/angle_charmm.html

doc/html/angle_class2.html

doc/html/angle_cosine.html

doc/html/angle_cosine_delta.html

doc/html/angle_cosine_periodic.html