docs(invoice-ninja): Add warning to see API tokens

packages/docs/pages/apps/invoice-ninja/connection.md

@@ -9,7 +9,7 @@ This page explains the steps you need to follow to set up the Invoice Ninja conn
 3. Click on the your company name.
 4. Click on the **Account Management** option.
 5. Click on the **Integrations** tab.
-6. Click on the **API Tokens**.
+6. Click on the **API Tokens**. (You need to have a paid account to be able to see that.)
 7. Click on the **New Token** button and create a new api token.
 8. Copy **Token** field and paste it to the **API Token** field in Automatisch connection creation page.
 9. Click the **Submit** button on Automatisch.