Added info about cron scheduling (#16835)

* added info about cron scheduling

* added additional info about cron scheduling

Author: sophia-wiley

docs/cloud/getting-started-with-airbyte-cloud.md

@@ -97,6 +97,10 @@ Setting up a connection involves configuring the following parameters:
 
 For more information, see [Connections and Sync Modes](../understanding-airbyte/connections/README.md) and [Namespaces](../understanding-airbyte/namespaces.md)
 
+If you need to use [cron scheduling](http://www.quartz-scheduler.org/documentation/quartz-2.3.0/tutorials/crontrigger.html):
+1. In the **Replication Frequency** dropdown, click **Cron**. 
+2. Enter a cron expression and choose a time zone to create a sync schedule.
+
 To set up a connection:
 
 1. On the Airbyte Cloud dashboard, click **Connections** and then click **+ New connection**.

docs/cloud/managing-airbyte-cloud.md

@@ -186,6 +186,16 @@ These parameters apply to all streams in the connection.
 
 :::
 
+If you need to use [cron scheduling](http://www.quartz-scheduler.org/documentation/quartz-2.3.0/tutorials/crontrigger.html):
+1. In the **Replication Frequency** dropdown, click **Cron**. 
+2. Enter a cron expression and choose a time zone to create a sync schedule.
+
+:::info
+
+Only one sync per connection can run at a time. If cron schedules a sync to run before the last sync finishes, the sync will start after the last one completes. 
+
+:::
+
 In the **Activate the streams you want to sync section**, you can make changes to any stream you choose.
 
 To search for a stream: