Package sendwikidiff implements a Google Cloud background function that reacts to a pubsub message containing a GitHub webhook change payload.
gcloud functions deploy HandleWikiChangePubSub \ --project=symbolic-datum-552 \ --runtime go113 \ --trigger-topic github.webhooks.golang.go.wiki \ --memory 1024 \ --set-env-vars="SENDGRID_API_KEY=$(gcloud --project=symbolic-datum-552 secrets versions access latest --secret=sendgrid-sendonly-api-key)"