ISS-175257: Fix outdated marketplace docs (#230)

* ISS-175257: Fix outdated marketplace docs

Changed the paragraph describing publication of restricted marketplace items as private marketplaces have been deprecated.

https://app.devrev.ai/devrev/works/ISS-175257

* restored formatter changes

* resolved comments

* resolved comments

* Update fern/docs/pages/snapin-concepts.mdx

Co-authored-by: Atul-Butola <atul.butola@devrev.ai>

---------

Co-authored-by: Atul-Butola <atul.butola@devrev.ai>

Author: MhcVintar

fern/docs/pages/snapin-concepts.mdx

@@ -87,7 +87,7 @@ Snap-in resources are user-level objects like keyrings, event sources, and input
 
 The [marketplace](https://marketplace.devrev.ai/marketplace) is a portal where DevRev and external developers can publish snap-ins and other extensions.
 
-Similarly, developers can use private marketplaces to publish their own custom snap-ins that are scoped to their dev org.
+If developers want to make their snap-ins available only to their dev org, and optionally to some external ones, they can publish them to the marketplace with `restricted` access.
 
 ## Personas
 
@@ -97,4 +97,4 @@ The developer's dev org is responsible for publishing the snap-in to the marketp
 
 ### Installer
 
-Installers install the snap-in, provide configuration inputs, set up the necessary keyrings, and configure webhooks for external apps.
+Installers install the snap-in, provide configuration inputs, set up the necessary keyrings, and configure webhooks for external apps.