update docs to specify Dockerfile.in
@@ -16,10 +16,10 @@ To run these tests through a cloudbuild, add the following build step to the **e
The sample application directory should contain the application fulfilling the integration test spec, as well as the necessary build artifacts to deploy the application via gcloud, which means at minimum:
- * a templated Dockerfile, with the first line being
+* a templated `Dockerfile.in`, with the first line being
` FROM ${STAGING_IMAGE} `
- * an app.yaml config
+* an `app.yaml` config
Alternatively, the application can be manually deployed *before* running the tests; in this scenario, the '--no-deploy' flag can be passed to the build step to opt out of deploying, in tandem with the URL at which the deployed application can be accessed:
