* Replace nfdc command lines with new syntax
* Remove mentioning of deprecated 'ndnd' and 'ndnd-tlv'
* Remove 'start nrd' step which has been removed
* Remove mentioning of ndn-cxx 'ndncatchunks3' and
'ndnputchunks3' which have been moved into ndn-tools
refs #4194, #3570, #3700
Change-Id: Ie52c727400f7a1b4b076b3a94e48c72724139713