docs: fix docstring formatting (#9)

* docs: fix docstring formatting

Committer: @parthea
PiperOrigin-RevId: 405015203

Source-Link: googleapis/googleapis@974ad5b

Source-Link: googleapis/googleapis-gen@9cea0b9
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiOWNlYTBiOTkzNjhlZGFlNDZiZDljZWJkNTNmYzFhY2E3NWZhYWVhZCJ9

* 🦉 Updates from OwlBot

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]

packages/google-cloud-orchestration-airflow-service/protos/google/cloud/orchestration/airflow/service/v1beta1/environments.proto

@@ -760,11 +760,13 @@ message EncryptionConfig {
 // The configuration settings for Cloud Composer maintenance window.
 // The following example:
 //
+// ```
 //    {
 //      "startTime":"2019-08-01T01:00:00Z"
 //      "endTime":"2019-08-01T07:00:00Z"
 //      "recurrence":"FREQ=WEEKLY;BYDAY=TU,WE"
 //    }
+// ```
 //
 // would define a maintenance window between 01 and 07 hours UTC during
 // each Tuesday and Wednesday.