[doc] add reference to bin/build
[doc] add reference to bin/build

fadeit/director,stonegithubs/director,kiritoe/director,sheldonzf/director,andradedev/director,meleslilijing/director,lzhengms/director,lzhengms/director,webx32/director,ks3dev/director,GerHobbelt/director,tanzhihang/director,flatiron/director,sheldonzf/director,fadeit/director,pandoraui/director,meleslilijing/director,mylikes/director,ks3dev/director,cpg1111/director,mylikes/director,stonegithubs/director,andradedev/director,tanzhihang/director,cpg1111/director,GerHobbelt/director,vitalsource/director,pandoraui/director,kiritoe/director,vitalsource/director,webx32/director