Refs #100857  Add ExtOpt description to technical documentation.
Refs #100857  Add ExtOpt description to technical documentation.

svartika/ccnx,svartika/ccnx,svartika/ccnx,cawka/ndnx,cawka/ndnx,cawka/ndnx,svartika/ccnx,svartika/ccnx,svartika/ccnx,svartika/ccnx,cawka/ndnx,cawka/ndnx