Add logic games citation to README
Add logic games citation to README

GtTmy/pyeda,karissa/pyeda,pombredanne/pyeda,cjdrake/pyeda,sschnug/pyeda,karissa/pyeda,sschnug/pyeda,sschnug/pyeda,pombredanne/pyeda,cjdrake/pyeda,pombredanne/pyeda,GtTmy/pyeda,GtTmy/pyeda,cjdrake/pyeda,karissa/pyeda