Update README.markdown
Update README.markdown

Add cmake dependency
Gunga/urbit,chc4/urbit,philipcmonk/urbit,philippeback/urbit,philippeback/urbit,bollu/urbit,rsaarelm/urbit,rsaarelm/urbit,philippeback/urbit,philipcmonk/urbit,burtonsamograd/urbit,philippeback/urbit,bvschwartz/urbit,rsaarelm/urbit,burtonsamograd/urbit,jpt4/urbit,jpt4/urbit,yebyen/urbit,yebyen/urbit,yebyen/urbit,Gunga/urbit,jpt4/urbit,bvschwartz/urbit,bvschwartz/urbit,galenwp/urbit,bvschwartz/urbit,dphiffer/urbit,chc4/urbit,chc4/urbit,philippeback/urbit,dphiffer/urbit,8l/urbit,urbit/archaeology-factor,dphiffer/urbit,8l/urbit,bollu/urbit,urbit/archaeology-factor,bollu/urbit,8l/urbit,burtonsamograd/urbit,Gunga/urbit,philipcmonk/urbit,urbit/archaeology-factor,rsaarelm/urbit,bvschwartz/urbit,burtonsamograd/urbit,philippeback/urbit,bvschwartz/urbit,burtonsamograd/urbit,rsaarelm/urbit,chc4/urbit,galenwp/urbit,burtonsamograd/urbit,dphiffer/urbit,chc4/urbit,chc4/urbit,daveloyall/urbit,bollu/urbit,galenwp/urbit,rsaarelm/urbit,daveloyall/urbit,burtonsamograd/urbit,8l/urbit,daveloyall/urbit,Gunga/urbit,urbit/archaeology-factor,burtonsamograd/urbit,dphiffer/urbit,chc4/urbit,urbit/archaeology-factor,bollu/urbit,yebyen/urbit,philipcmonk/urbit,dcow/urbit,urbit/archaeology-factor,bvschwartz/urbit,dcow/urbit,daveloyall/urbit,8l/urbit,jpt4/urbit,rsaarelm/urbit,urbit/archaeology-factor,urbit/archaeology-factor,jpt4/urbit,yebyen/urbit,philippeback/urbit,philippeback/urbit,8l/urbit,burtonsamograd/urbit,8l/urbit,philipcmonk/urbit,8l/urbit,philipcmonk/urbit,bvschwartz/urbit,bvschwartz/urbit,jpt4/urbit,urbit/archaeology-factor,chc4/urbit,jpt4/urbit,philipcmonk/urbit,galenwp/urbit,yebyen/urbit,philipcmonk/urbit,Gunga/urbit,daveloyall/urbit,rsaarelm/urbit,Gunga/urbit,galenwp/urbit,dphiffer/urbit,jpt4/urbit,Gunga/urbit,dphiffer/urbit,rsaarelm/urbit,bollu/urbit,dcow/urbit,daveloyall/urbit,galenwp/urbit,daveloyall/urbit,dcow/urbit,yebyen/urbit,philippeback/urbit,Gunga/urbit,galenwp/urbit,galenwp/urbit,dcow/urbit,dcow/urbit,bollu/urbit,rsaarelm/urbit,galenwp/urbit,dphiffer/urbit,jpt4/urbit,daveloyall/urbit,Gunga/urbit,jpt4/urbit,dcow/urbit,burtonsamograd/urbit,chc4/urbit,philipcmonk/urbit,8l/urbit,bollu/urbit,bollu/urbit,philipcmonk/urbit,yebyen/urbit,philippeback/urbit,dphiffer/urbit,daveloyall/urbit,yebyen/urbit,dphiffer/urbit,daveloyall/urbit,urbit/archaeology-factor,Gunga/urbit,bollu/urbit,dcow/urbit,8l/urbit,yebyen/urbit,dcow/urbit,chc4/urbit,galenwp/urbit,bvschwartz/urbit