synth: use common templating for .circleci/config.yml (#6)
synth: use common templating for .circleci/config.yml (#6)

* synth: use common templating for .circleci/config.yml

* fix: add a samples/package.json

GoogleCloudPlatform/nodejs-docs-samples,GoogleCloudPlatform/nodejs-docs-samples,GoogleCloudPlatform/nodejs-docs-samples,GoogleCloudPlatform/nodejs-docs-samples