update README.md

Author: spdeepak

examples/README.md

@@ -1,3 +1,13 @@
 # flowtracker examples
 
 This repo has all the examples on how to use the flowtracker library
+
+Notes:
+
+If you get error when you run `go mod tidy` or `go mod vendor` in examples folder related to `otlptracehttp` try running
+
+```
+go get go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp
+```
+
+Then run `go mod tidy` and `go mod vendor`

examples/otlp/otlp.go

@@ -7,6 +7,7 @@ import (
 	"time"
 
 	"github.com/spdeepak/flowtracker"
+	"github.com/spdeepak/flowtracker/examples"
 	otelexporter "github.com/spdeepak/flowtracker/otel"
 
 	"go.opentelemetry.io/otel"
@@ -54,6 +55,7 @@ func main() {
 
 		finish()
 		w.Write([]byte("Trace sent to Jaeger! Check http://localhost:16686"))
+		examples.Handler(w, r)
 	})
 
 	log.Println("Server running on :8080")