Update getting-started-local-single-node.md (#3425)
Update getting-started-local-single-node.md (#3425)

Wget link for macos
twitter/heron,twitter/heron,huijunwu/heron,huijunwu/heron,huijunwu/heron,twitter/heron,twitter/heron,huijunwu/heron,huijunwu/heron,twitter/heron,huijunwu/heron,huijunwu/heron,twitter/heron,twitter/heron,huijunwu/heron,twitter/heron