added review changes

instrumentation/instabeego/README.md

@@ -21,10 +21,13 @@ Usage
 
 ```go
 // create a sensor
-sensor := instana.NewSensor("beego-server")
+t := instana.InitCollector(&instana.Options{
+    Service:           "beego-server",
+    EnableAutoProfile: true,
+})
 
 // instrument the web server
-instabeego.InstrumentWebServer(sensor)
+instabeego.InstrumentWebServer(t)
 
 // define API 
 beego.Get("/foo", func(ctx *beecontext.Context) {/* ... */})
@@ -39,7 +42,10 @@ beego.Run()
 
 ```go
 // create a sensor
-sensor := instana.NewSensor("my-http-client")
+t := instana.InitCollector(&instana.Options{
+    Service:           "my-http-client",
+    EnableAutoProfile: true,
+})
 
 // get the parent span and inject into the request context
 ctx := instana.ContextWithSpan(context.Background(), /* parent span */)

instrumentation/instabeego/example_http_client_test.go

@@ -18,12 +18,15 @@ import (
 
 // This example shows how to instrument beego httplib module (HTTP client) with Instana tracing
 func Example_httpClientInstrumentation() {
-	sensor := instana.NewSensor("my-http-client")
+	t := instana.InitCollector(&instana.Options{
+		Service:           "my-http-client",
+		EnableAutoProfile: true,
+	})
 
 	// Every call should start with an entry span (https://docs.instana.io/quick_start/custom_tracing/#always-start-new-traces-with-entry-spans)
 	// Normally this would be your HTTP/GRPC/message queue request span, but here we need to create it explicitly, since an HTTP client call is
 	// an exit span. And all exit spans must have a parent entry span.
-	sp := sensor.Tracer().StartSpan("client-call")
+	sp := t.StartSpan("client-call")
 	sp.SetTag(string(ext.SpanKind), "entry")
 
 	defer sp.Finish()
@@ -32,7 +35,7 @@ func Example_httpClientInstrumentation() {
 	ctx := instana.ContextWithSpan(context.Background(), sp)
 
 	req := httplib.NewBeegoRequestWithCtx(ctx, "https://www.instana.com", http.MethodGet)
-	instabeego.InstrumentRequest(sensor, req)
+	instabeego.InstrumentRequest(t, req)
 
 	_, err := req.Response()
 	if err != nil {

instrumentation/instabeego/example_web_server_test.go

@@ -23,9 +23,12 @@ func (u *UserController) GetUserById() {
 
 // This example shows how to instrument a beego web server.
 func Example_serverInstrumentation() {
-	sensor := instana.NewSensor("my-web-server")
+	t := instana.InitCollector(&instana.Options{
+		Service:           "beego-server",
+		EnableAutoProfile: true,
+	})
 	// This will add instana.TracingHandlerFunc() function as middleware for every API.
-	instabeego.InstrumentWebServer(sensor)
+	instabeego.InstrumentWebServer(t)
 
 	beego.CtrlGet("api/user/:id", (*UserController).GetUserById)
 	beego.Run()