Add links to quickstart and observability overview in README.md (#358)

README.md

@@ -3,12 +3,19 @@
 [![Documentation Status](https://readthedocs.org/projects/google-cloud-opentelemetry/badge/?version=latest)](https://google-cloud-opentelemetry.readthedocs.io/en/latest/?badge=latest)
 <!-- todo add pypi badges here -->
 
-Provides OpenTelemetry Python exporters, propagators, and resource detectors
+This repo provides OpenTelemetry Python exporters, propagators, and resource detectors
 for Google Cloud Platform.
 
+To get started with instrumentation in Google Cloud, see [Generate traces and metrics with
+Python](https://cloud.google.com/stackdriver/docs/instrumentation/setup/python).
+
 ## Documentation
 
-Docs are available at <https://google-cloud-opentelemetry.readthedocs.io/en/latest/>
+To learn more about instrumentation and observability, including opinionated recommendations
+for Google Cloud Observability, visit [Instrumentation and
+observability](https://cloud.google.com/stackdriver/docs/instrumentation/overview).
+
+API docs and additional examples are available at <https://google-cloud-opentelemetry.readthedocs.io/en/latest/>
 
 ## Installation