docs(srv): add faq entry on cron MTA-5983 (#4901)

* docs(srv): add faq entry on cron MTA-5983

* Apply suggestions from code review

Co-authored-by: Rowena Jones <[email protected]>

---------

Co-authored-by: Rowena Jones <[email protected]>

Author: SamyOubouaziz

pages/serverless-containers/faq.mdx

@@ -189,6 +189,16 @@ Serverless Containers namespaces and Container Registry namespaces observe the f
 
 - If you delete the Container Registry namespace associated with a Serverless Containers namespace, it will be created again when deploying a container within this Serverless Containers namespace.
 
+ ### How can I call my containers periodically?
+
+ Scaleway Serverless Containers natively support CRON triggers to call your containers periodically. This feature has many applications, such as scheduled data processing, maintenance tasks, monitoring, or reporting.
+ 
+ Periodic CRON triggers also allow you to maintain your containers active during specific time slots to reduce cold start latency, without having to provision a minimum of 1 vCPU at all times.
+
+ Refer to the [dedicated documentation](/serverless-containers/how-to/add-trigger-to-a-container/) for more information on how to create CRON triggers for your containers.
+
+ To learn more about how CRONs work, refer to our [CRON schedule reference documentation](/serverless-containers/reference-content/cron-schedules/).
+
 ### How do Serverless Containers health checks work ?
 
 A Serverless Container is set to `ready` once the specified port is correctly bound to the container, and will start receiving traffic. If your application needs to perform some tasks before receiving traffic (e.g. connect to a database), it is important to run them before binding to the port (starting the webserver).

pages/serverless-functions/faq.mdx

@@ -213,7 +213,17 @@ In the `Serverless Functions Logs` dashboard, you will then be able to read info
 
 ### How can I test my functions locally?
 
- Scaleway provides libraries to run your functions locally, for debugging, profiling, and testing purposes. Refer to the [dedicated documentation](/serverless-functions/reference-content/local-testing/) for more information.
+Scaleway provides libraries to run your functions locally, for debugging, profiling, and testing purposes. Refer to the [dedicated documentation](/serverless-functions/reference-content/local-testing/) for more information.
+
+### How can I call my functions periodically?
+
+Scaleway Serverless Functions natively support CRON triggers to call your functions periodically. This feature has many applications, such as scheduled data processing, maintenance tasks, monitoring, or reporting.
+
+Periodic CRON triggers also allow you to maintain your functions active during specific time slots to reduce cold start latency, without having to provision a minimum of 1 vCPU at all times.
+
+Refer to the [dedicated documentation](/serverless-functions/how-to/add-trigger-to-a-function/) for more information on how to create CRON triggers for your functions.
+
+To learn more about how CRONs work, refer to our [CRON schedule reference documentation](/serverless-functions/reference-content/cron-schedules/).
 
 ### Where can I find some advanced code examples for functions?