DOCS-931 - Update the product list (#5478)

* Refreshed community apps, partner integrations, webhooks

* Continue refresh

* Cloud SIEM integrations

* Automation integrations

* Apps

* pfSense fix (#5479)

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Co-authored-by: Kim (Sumo Logic) <[email protected]>

Author: jpipkin1

docs/integrations/product-list/index.md

@@ -11,7 +11,7 @@ This section contains articles that list all the vendors and products that Sumo
 Types of integrations:
 * **Apps**. Pre-built applications with dashboards that provide robust analytics about the product. To [install apps](/docs/get-started/apps-integrations/), select **App Catalog** from the main menu. See [Apps and Integrations](/docs/integrations/) for more information.
 * **Automation integrations**. Integrations for use in the Automation Service and Cloud SOAR. For more information, see [Integrations in App Central](/docs/platform-services/automation-service/app-central/integrations/).
-* **Cloud SIEM integrations**. Rules, mappers, parsers, and normalization schema in Cloud SIEM for integrating with external products. See [Cloud SIEM Content Catalog](/docs/cse/get-started-with-cloud-siem/cloud-siem-content-catalog) for more information.
+* **Cloud SIEM integrations**. Rules, mappers, parsers, and normalization schema in Cloud SIEM for integrating with external products. See [Cloud SIEM Content Catalog](/docs/cse/get-started-with-cloud-siem/cloud-siem-content-catalog) for more information. See [Vendors](https://github.com/SumoLogic/cloud-siem-content-catalog/blob/master/vendors/README.md) for a complete of vendors.
 * **Collectors**. Agents that collect data from the product. See [Send Data](/docs/send-data/) for documentation about collectors.
 * **Community apps**. Apps provided by internal and external users and our creator community. See [Sumo Logic Community Ecosystem Apps](/docs/integrations/community-ecosystem-apps/) for more information.
 * **Partner integrations**. Apps and integrations that are provided by members of our partner network. See [Partner Ecosystem Apps](/docs/integrations/partner-ecosystem-apps/) and [Partner Integrations for Sumo Logic](/docs/integrations/partner-integrations/) for more information.