Updated gmx commands for gmx2018.1
Updated gmx commands for gmx2018.1

haddocking/haddocking.github.io,amjjbonvin/haddocking.github.io,haddocking/haddocking.github.io,haddocking/haddocking.github.io,amjjbonvin/haddocking.github.io,latrocinia/haddocking.github.io,latrocinia/haddocking.github.io,latrocinia/haddocking.github.io,amjjbonvin/haddocking.github.io,amjjbonvin/haddocking.github.io,haddocking/haddocking.github.io,latrocinia/haddocking.github.io