Merge branch 'master' into expose-opts-via-expvar

Author: dstdfx

README.md

@@ -2,7 +2,6 @@
 
 
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/1273/badge)](https://bestpractices.coreinfrastructure.org/projects/1273)
-[![Go Report Card](https://goreportcard.com/badge/github.com/jaegertracing/jaeger?style=flat-square)](https://goreportcard.com/report/github.com/jaegertracing/jaeger)
 [![Mentioned in Awesome Go](https://awesome.re/mentioned-badge-flat.svg)](https://github.com/avelino/awesome-go#performance)
 [![OpenTracing-1.0][ot-badge]](https://opentracing.io)