Move description from docs into code sample (#630)

As part of making the GCF docs language-agnostic, we are removing language-specific comments from the text and putting them into the code samples instead as code comments.
GoogleCloudPlatform · Jun 4, 2018 · 7c98f38 · 7c98f38
1 parent ce28093
commit 7c98f38
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/functions/helloworld/index.js b/functions/helloworld/index.js
@@ -58,6 +58,8 @@ exports.helloBackground = (event, callback) => {
 // [START functions_helloworld_pubsub]
 /**
  * Background Cloud Function to be triggered by Pub/Sub.
+ * This function is exported by index.js, and executed when
+ * the trigger topic receives a message.
  *
  * @param {object} event The Cloud Functions event.
  * @param {function} callback The callback function.