Include new service_name workflow (#1739)

Changes from #1669 have not been reflected in the docs

Author: joncwong

exporter/opentelemetry-exporter-jaeger-thrift/examples/jaeger_exporter_example.py

@@ -2,10 +2,15 @@
 
 from opentelemetry import trace
 from opentelemetry.exporter.jaeger import thrift
+from opentelemetry.sdk.resources import SERVICE_NAME, Resource
 from opentelemetry.sdk.trace import TracerProvider
 from opentelemetry.sdk.trace.export import BatchSpanProcessor
 
-trace.set_tracer_provider(TracerProvider())
+trace.set_tracer_provider(
+    TracerProvider(
+        resource=Resource.create({SERVICE_NAME: "my-helloworld-service"})
+    )
+)
 tracer = trace.get_tracer(__name__)
 
 # create a JaegerExporter