fix typo err and add env ref

docs/getting-started.md

@@ -35,7 +35,7 @@ To instrument an application on the same host, follow these steps:
   For example:
 
   ```sh
-  sudo OTEL_GO_AUTO_TARGET_EXE=/home/bin/service_executable OTEL_SERVICE_NAME=my_service OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4318 ./otel-go-instrumentation`
+  sudo OTEL_GO_AUTO_TARGET_EXE=/home/bin/service_executable OTEL_SERVICE_NAME=my_service OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4318 ./otel-go-instrumentation
   ```
 
 3. Run the OpenTelemetry Go Automatic Instrumentation with root privileges.
@@ -61,12 +61,15 @@ network, a shared volume, and a service for the application.
       environment:
         - OTEL_EXPORTER_OTLP_ENDPOINT=http://<address_in_docker_network>:4318
         - OTEL_GO_AUTO_TARGET_EXE=<location_of_target_application_binary>
+        - OTEL_RESOURCE_ATTRIBUTES=key1=value1
         - OTEL_SERVICE_NAME=<name_of_your_application>
         - OTEL_PROPAGATORS=tracecontext,baggage
       volumes:
         - <shared_volume_of_application>
         - /proc:/host/proc
   ```
+  
+  For more environment variables, refer to [here](https://opentelemetry.io/docs/languages/sdk-configuration/).
 
 3. Run `docker compose up`.