remove circleci from list (#213)

README.md

@@ -17,15 +17,14 @@ limitations under the License.
 # Zipkin Library for Go
 
 [![GHA](https://github.com/openzipkin/zipkin-go/actions/workflows/ci.yml/badge.svg?event=push)](https://github.com/openzipkin/zipkin-go/actions/workflows/ci.yml)
-[![CircleCI](https://circleci.com/gh/openzipkin/zipkin-go.svg?style=shield)](https://circleci.com/gh/openzipkin/zipkin-go)
 [![codecov](https://codecov.io/gh/openzipkin/zipkin-go/branch/master/graph/badge.svg?token=gXdWofFlsq)](https://codecov.io/gh/openzipkin/zipkin-go)
 [![Go Report Card](https://goreportcard.com/badge/github.com/openzipkin/zipkin-go)](https://goreportcard.com/report/github.com/openzipkin/zipkin-go)
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-Zipkin Go is the official Go Tracer / Tracing implementation for Zipkin, supported by the
-OpenZipkin community.
+Zipkin Go is the official Go Tracer / Tracing implementation for Zipkin, 
+supported by the OpenZipkin community.
 
 ## package organization
 `zipkin-go` is built with interoperability in mind within the OpenZipkin
@@ -70,8 +69,8 @@ For convenience `NewClient` is provided which returns a HTTP Client which embeds
 calling the `DoWithAppSpan()` method.
 
 #### grpc
-Easy to use grpc.StatsHandler middleware are provided for tracing gRPC server and
-client requests. 
+Easy to use grpc.StatsHandler middleware are provided for tracing gRPC server
+and client requests. 
 
 For a server, pass `NewServerHandler` when calling `NewServer`, e.g.,