Update README.markdown
Update README.markdown

Added package section
chc4/urbit,bvschwartz/urbit,yebyen/urbit,philippeback/urbit,rsaarelm/urbit,jpt4/urbit,burtonsamograd/urbit,urbit/archaeology-factor,bollu/urbit,galenwp/urbit,burtonsamograd/urbit,jpt4/urbit,yebyen/urbit,urbit/archaeology-factor,galenwp/urbit,rsaarelm/urbit,rsaarelm/urbit,chc4/urbit,galenwp/urbit,daveloyall/urbit,chc4/urbit,chc4/urbit,bollu/urbit,jpt4/urbit,rsaarelm/urbit,philippeback/urbit,dphiffer/urbit,galenwp/urbit,chc4/urbit,daveloyall/urbit,galenwp/urbit,daveloyall/urbit,burtonsamograd/urbit,dphiffer/urbit,chc4/urbit,rsaarelm/urbit,urbit/archaeology-factor,bollu/urbit,jpt4/urbit,galenwp/urbit,Gunga/urbit,bvschwartz/urbit,daveloyall/urbit,daveloyall/urbit,daveloyall/urbit,bollu/urbit,yebyen/urbit,burtonsamograd/urbit,chc4/urbit,dphiffer/urbit,burtonsamograd/urbit,jpt4/urbit,8l/urbit,yebyen/urbit,bvschwartz/urbit,jpt4/urbit,daveloyall/urbit,dphiffer/urbit,Gunga/urbit,philippeback/urbit,yebyen/urbit,bollu/urbit,Gunga/urbit,jpt4/urbit,dphiffer/urbit,yebyen/urbit,rsaarelm/urbit,urbit/archaeology-factor,8l/urbit,philippeback/urbit,8l/urbit,urbit/archaeology-factor,Gunga/urbit,bvschwartz/urbit,8l/urbit,bollu/urbit,philippeback/urbit,philippeback/urbit,rsaarelm/urbit,dphiffer/urbit,bollu/urbit,rsaarelm/urbit,daveloyall/urbit,yebyen/urbit,burtonsamograd/urbit,urbit/archaeology-factor,Gunga/urbit,Gunga/urbit,Gunga/urbit,yebyen/urbit,Gunga/urbit,yebyen/urbit,burtonsamograd/urbit,galenwp/urbit,jpt4/urbit,chc4/urbit,dphiffer/urbit,Gunga/urbit,urbit/archaeology-factor,bvschwartz/urbit,8l/urbit,bollu/urbit,burtonsamograd/urbit,urbit/archaeology-factor,bvschwartz/urbit,bvschwartz/urbit,8l/urbit,bvschwartz/urbit,bvschwartz/urbit,urbit/archaeology-factor,8l/urbit,galenwp/urbit,dphiffer/urbit,bollu/urbit,burtonsamograd/urbit,philippeback/urbit,Gunga/urbit,urbit/archaeology-factor,daveloyall/urbit,bvschwartz/urbit,philippeback/urbit,philippeback/urbit,chc4/urbit,jpt4/urbit,rsaarelm/urbit,burtonsamograd/urbit,dphiffer/urbit,galenwp/urbit,chc4/urbit,philippeback/urbit,galenwp/urbit,8l/urbit,jpt4/urbit,rsaarelm/urbit,bollu/urbit,8l/urbit,8l/urbit,dphiffer/urbit,yebyen/urbit,daveloyall/urbit