help: Add documentation on configuring default language for new users.

This is documented on the page about organization language, but makes sense
to include here as well.

Also reordered preferences to match the order in the menu.

help/configure-default-new-user-settings.md

@@ -12,24 +12,27 @@ users will be able to customize their own settings once they
 join. Administrators can customize defaults for all personal
 preference settings, including the following:
 
-* Privacy settings, including:
+* Privacy settings:
     * [Displaying availability to other users](/help/status-and-availability)
     * [Allowing others to see when the user has read messages](/help/read-receipts)
-* Preferences, including:
+
+* Preferences:
+    * [Language](/help/change-your-language)
+    * [Time format](/help/change-the-time-format)
+    * [Light theme vs. dark theme](/help/dark-theme)
+    * [Emoji theme](/help/emoji-and-emoticons#change-your-emoji-set)
     * [Default view](/help/configure-default-view)
       ([Inbox](/help/inbox) vs.
       [Recent conversations](/help/recent-conversations) vs.
       [All messages](/help/reading-strategies#all-messages))
-    * [Light theme vs. dark theme](/help/dark-theme)
-    * [Emoji theme](/help/emoji-and-emoticons#change-your-emoji-set)
-    * [Time format](/help/change-the-time-format)
-* Notification settings, including:
+
+* Notification settings:
     * [What types of messages trigger notifications][default-notifications]
     * [Configurations for email notifications](/help/email-notifications)
 
 [default-notifications]: /help/stream-notifications#configure-default-notifications-for-all-streams
 
-## How to configure default settings for new users
+## Configure default settings for new users
 
 {start_tabs}
 
@@ -39,6 +42,24 @@ preference settings, including the following:
 
 {end_tabs}
 
+## Configure default language for new users
+
+Your organization's [language](/help/configure-organization-language) will be
+the default language for new users when Zulip cannot detect their language
+preferences from their browser, including all users [created via the Zulip
+API](/api/create-user).
+
+{start_tabs}
+
+{settings_tab|organization-settings}
+
+1. Under **Automated messages and emails**, change the **Language for
+   automated messages and invitation emails**.
+
+{!save-changes.md!}
+
+{end_tabs}
+
 ## Related articles
 
 * [Setting up your organization](/help/getting-your-organization-started-with-zulip)

help/configure-organization-language.md

@@ -38,6 +38,7 @@ automated messages and invitation emails. This setting:
 
 * [Change your language][user-lang]
 * [Configure multi-language search](/help/configure-multi-language-search)
+* [Configure default settings for new users](/help/configure-default-new-user-settings)
 
 [api-create-user]: https://zulip.com/api/create-user
 [user-lang]: /help/change-your-language