Add descriptions of the nm(1aout) keywords and their meanings.
Add descriptions of the nm(1aout) keywords and their meanings.

PR:		docs/17269
Submitted by:	Oscar Bonilla <obonilla@fisicc-ufm.edu>

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase