add tenure; add link to Census glossary
add tenure; add link to Census glossary

Code4SA/censusreporter,4bic/censusreporter,danilito19/censusreporter,danilito19/censusreporter,sseguku/simplecensusug,qshng522/censusreporter,censusreporter/censusreporter,uscensusbureau/censusreporter,4bic/censusreporter,Ladaniels/censusreporter,Ladaniels/censusreporter,Code4SA/censusreporter,Ladaniels/censusreporter,uscensusbureau/censusreporter,danilito19/censusreporter,qshng522/censusreporter,sseguku/simplecensusug,censusreporter/censusreporter,sseguku/simplecensusug,Code4SA/censusreporter,qshng522/censusreporter,danilito19/censusreporter,censusreporter/censusreporter,qshng522/censusreporter,uscensusbureau/censusreporter,4bic/censusreporter,censusreporter/censusreporter,Ladaniels/censusreporter,Code4SA/censusreporter