Update docs: quickstart enable zipkin (#398)
Update docs: quickstart enable zipkin (#398)


jaegertracing/jaeger,uber/jaeger,pavolloffay/jaeger,jpkrohling/jaeger,jaegertracing/jaeger,uber/jaeger,pavolloffay/jaeger,NeoCN/jaeger,pavolloffay/jaeger,pavolloffay/jaeger,NeoCN/jaeger,jaegertracing/jaeger,jaegertracing/jaeger,jpkrohling/jaeger,jpkrohling/jaeger,uber/jaeger,pavolloffay/jaeger,NeoCN/jaeger,uber/jaeger,NeoCN/jaeger,jpkrohling/jaeger,jaegertracing/jaeger,jpkrohling/jaeger