Some documentation update for recorders

[Nero]

2 things-

1) In the zero-length element description, it claims that the recorder command to record element stiffness is "stiffness"- this command is actually "stiff"

2) For the Truss element, there is no documented deformation recorder. To record deformations for truss elements, use the term: "deformations"

So the commands would be:
recorder Element -file filename -ele <ele num(s)> stiff (to record a zero length element stiffness)
recorder Element -file filename -ele <ele num(s)> deformations (to record a truss element deformation)

[silvia]

got them, thank you!!!

[Nero]

NP