update readme to mark http as default and recommended configuration

lightstep / lightstep-tracer-go

The Lightstep distributed tracing library for Go

https://lightstep.com

MIT License

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update readme to mark http as default and recommended configuration #203

Closed MatthewDolan closed 5 years ago

MatthewDolan commented 5 years ago

R: @aliceadelef @ltyson

CC: @lightstep/team-observability @lightstep/team-application-developer

Summary of Change

This updates the readme to mark http as the default transport protocol (replacing grpc). This should make it easier to get up and running the java tracer without needing grpc networking infrastructure.