added password preview deployment docs

deploy/preview-deployments.mdx

@@ -37,7 +37,7 @@ You can manually create a preview for any branch.
 2. Select **Previews**.
 3. Select **Create custom preview**.
 4. Enter the name of the branch you want to preview.
-5. Select **Create deployment**.
+5. Select **Create preview**.
 
 ## Redeploy a preview
 
@@ -69,7 +69,11 @@ The widget only appears on preview deployments, not on your live site or local p
 
 ## Restrict access to preview deployments
 
-By default, preview deployments are publicly accessible to anyone with the URL. You can restrict access to authenticated members of your Mintlify organization.
+By default, preview deployments are publicly accessible to anyone with the URL. You can restrict access by requiring organization authentication for all previews or by password-protecting individual previews.
+
+### Require organization authentication
+
+Restrict preview access to authenticated members of your Mintlify organization.
 
 1. Navigate to the **Previews** section in the [Add-ons](https://dashboard.mintlify.com/products/addons) page of your dashboard.
 2. Click the **Preview authentication** toggle to enable or disable preview authentication.
@@ -78,6 +82,25 @@ By default, preview deployments are publicly accessible to anyone with the URL.
     <img src="/images/previews/preview-auth-dark.png" alt="The preview authentication toggle in the Add-ons page" className="hidden dark:block" />
   </Frame>
 
+### Password-protect an individual preview
+
+<Info>
+  Password-protected previews are available on [Enterprise plans](https://mintlify.com/pricing?ref=preview-deployments).
+</Info>
+
+Password-protect a specific preview to share it with external reviewers without adding them to your Mintlify organization. This option is available when creating a manual preview and is not shown when organization authentication is already enabled for your deployment.
+
+1. Go to your [dashboard](https://dashboard.mintlify.com/).
+2. Select **Previews**.
+3. Select **Create custom preview**.
+4. Enter the name of the branch you want to preview.
+5. Toggle **Make private** on and enter a password. Passwords must be at least 8 characters.
+  <Frame>
+    <img src="/images/previews/private-preview-light.png" alt="The Create a custom preview modal with the Make private toggle enabled and a password field." className="block dark:hidden" />
+    <img src="/images/previews/private-preview-dark.png" alt="The Create a custom preview modal with the Make private toggle enabled and a password field." className="hidden dark:block" />
+  </Frame>
+6. Select **Create preview**.
+
 ## Troubleshooting preview deployments
 
 If your preview deployment fails, try these troubleshooting steps.