add docs for slack threads options (#10117)

* add docs for slack threads options

* rename

* Apply suggestions from code review

Co-authored-by: vivianyentran <[email protected]>
Co-authored-by: Cathy Teng <[email protected]>

---------

Co-authored-by: vivianyentran <[email protected]>
Co-authored-by: Cathy Teng <[email protected]>

Author: 3 people

docs/organization/integrations/img/integration-features-tab.png

@@ -127,3 +127,11 @@ For more details, see the [full Integration Platform documentation](/organizatio
 | [AWS Lambda - Python (Manual)](/platforms/python/integrations/aws-lambda/)            | X               | X                          |
 | [AWS Lambda - Node (Automatic)](/organization/integrations/cloud-monitoring/aws-lambda/)   | X               | X                          |
 | [AWS Lambda - Node (Manual)](/platforms/javascript/guides/aws-lambda/)                      | X               | X                          |
+
+
+## Toggleable Features
+Some integrations have features that can be enabled or disabled through a toggle at the integration level. Toggling features on/off takes effect instantly across the integration. Defaults are dependent on the feature, per integration.
+
+Not every integration has toggleable features, but if they do, you can find them in the `Features` tab for the specific integration's settings.
+
+![Integration features tab](./img/integration-features-tab.png)

docs/organization/integrations/index.mdx

@@ -39,3 +39,11 @@ Threads will notify you when a metric alert has been triggered, and again when i
 Threads will keep your issue statuses in sync. The Threads notification will update when your issue is archived or resolved:
 
 ![Issue statuses synced](./img/threads-issue-alert.png)
+
+## Toggleable Features
+
+Threads can be enabled or disabled through the features tab in the Slack integration settings. Threads can be toggled for both Issue Alerts and Metric Alerts.
+
+![Slack threads feature](./img/slack-threads-features.png)
+
+By default, both features are enabled.