[IMP] accounting: adding info about group payments
task-3518648
@odoo/be-doc-review Concerning the "Registering a partial payment" part, it was initially updated on the Vendor bills page following a task. As it is more relevant to have it on the Payments page, I have copied what was on the Vendor bills page. When the Payments page is online, I will update the Vendor bills page to avoid duplicating content (checked with @auva-odoo).
@dade-odoo Thanks for your review ;) I have updated the page with the corrections.
@auva-odoo Thanks for the review! Everything should be ok now ;) I just have one question though: Should a 16 page refer to a 16 tutorial?
