Add SimpleFIN where GoCardless mentioned in Accounts docs (#643)

Replace: Link to GoCardless
With: Link (to GoCardless for Eurpean Banks or SimpleFin for North
American Banks)

docs/accounts/index.md

@@ -21,7 +21,7 @@ You can add an account to your budget at any time, however when you first instal
 You can also add an account using the `+ Add account` button in the sidebar.
 
 Two successive screens will appear with boxes asking you to fill in a few options
-- Create a Local Account or Link to GoCardless (See [Connecting Your Bank](https://actualbudget.org/docs/advanced/bank-sync))
+- Create a Local Account or Link to a supported bank syncing provider (See [Connecting Your Bank](https://actualbudget.org/docs/advanced/bank-sync))
 - Give your account a name
 - Is the account on budget or off budget
 - The current account balance