user docs: Add restrict-bot-creation.

templates/zerver/help/deactivate-or-reactivate-a-bot.md

@@ -33,3 +33,7 @@ bot that you want to reactivate.
 5. After clicking the **Reactivate** button, the button will transform into a
 **Deactivate** button, and the **Name** and **Email** of the bot will be cleared
 of strikethrough, confirming the success of the bot's reactivation.
+
+## Related articles
+
+* [Restrict bot creation](/help/restrict-bot-creation)

templates/zerver/help/include/sidebar.md

@@ -139,6 +139,7 @@
 ## Users & bots
 * [Deactivate or reactivate a user](/help/deactivate-or-reactivate-a-user)
 * [Deactivate or reactivate a bot](/help/deactivate-or-reactivate-a-bot)
+* [Restrict bot creation](/help/restrict-bot-creation)
 * [Make a user an administrator](/help/make-a-user-an-administrator)
 * [Change a user's name](/help/change-a-users-name)
 * [View all bots in your organization](/help/view-all-bots-in-your-organization)

templates/zerver/help/restrict-bot-creation.md

@@ -0,0 +1,21 @@
+# Configure who can add bots
+
+{!admin-only.md!}
+
+By default, anyone can [add a bot](/help/add-a-bot-or-integration) or
+integration to the Zulip organization. Organization administrators can
+change who is allowed to add bots.
+
+{settings_tab|organization-permissions}
+
+2. Under **Organization permissions**, configure **Who can add bots**.
+
+{!save-changes.md!}
+
+!!! warn ""
+    These settings only affect new bots. Existing bots will not be
+    deactivated.
+
+## Related articles
+
+[Deactivate or reactivate a bot](/help/deactivate-or-reactivate-a-bot)