Fix getting-started.md with the correct import packages in main.go

CHANGELOG.md

@@ -22,6 +22,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - Slice attributes of `attribute` package are now comparable based on their value, not instance. (#3108 #3252)
 - Prometheus exporter will now cumulatively sum histogram buckets. (#3281)
 - Export the sum of each histogram datapoint uniquely with the `go.opentelemetry.io/otel/exporters/otlpmetric` exporters. (#3284, #3293)
+- Getting-started guide will now have the right list of import packages in main.go to run through the example successfully. (#3354)
 
 ## [1.11.0/0.32.3] 2022-10-12
 

website_docs/getting-started.md

@@ -280,9 +280,12 @@ import (
 	"io"
 	"log"
 	"os"
+	"os/signal"
 
 	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/exporters/stdout/stdouttrace"
+	"go.opentelemetry.io/otel/sdk/resource"
 	"go.opentelemetry.io/otel/sdk/trace"
 	semconv "go.opentelemetry.io/otel/semconv/v1.12.0"
 )