message: Update gcp-go-functions/README
  Fix minor error in heading: Python -> Go
diff: [![Deploy](https://get.pulumi.com/new/button.svg)](https://app.pulumi.com/new?template=https://github.com/pulumi/examples/blob/master/gcp-go-functions/README.md)
  -# Google Cloud Functions in Python deployed with Go
  +# Google Cloud Functions in Go deployed with Go
  This example deploys a Google Cloud Function implemented in Go. Pulumi program is also implemented in Go.
  