Add traces to illustrate the switch and network sections of the README.
Also, remove the out-of-date performance section (it relies on the splice optimisation, which is currently disabled, and encourages Flow.copy, which is often a bad choice as you can't control the buffer size). And simplify the network example, replacing Flow.copy with the newer Flow.read_all.
Add traces to illustrate the switch and network sections of the README.
Also, remove the out-of-date performance section (it relies on the
spliceoptimisation, which is currently disabled, and encouragesFlow.copy, which is often a bad choice as you can't control the buffer size). And simplify the network example, replacingFlow.copywith the newerFlow.read_all.