[AlphaCommerceHub] The «Create Billing Agreement without Initial Payment» heading in the «PayPal October 2017» → «Reference transaction» documentation section is wrong (used for a different scenario)

The «Create Billing Agreement without Initial Payment» heading is used twice here: developer.alphacommercehub.com.au/docs/paypal-october-2017#create-billing-agreement-without-initial-payment

The first one is used for a different scenario (Create Billing Agreement WITH Initial Payment).