[FW][IMP] general: iot add payment terminals link

[fw-bot]

Forward-Port-Of: odoo/documentation#9305

[robodoo]

Pull request status dashboard.

[fw-bot]

This PR targets 16.0 and is part of the forward-port chain. Further PRs will be created up to master.

More info at https://github.com/odoo/odoo/wiki/Mergebot#forward-port

[robodoo]

@lse-odoo @StraubCreative staging failed: ci/runbot on 647d910fd6c4a4ca80ba857e853bf635db806f13 (view more at https://runbot.odoo.com/runbot/build/62518863)

[StraubCreative]

@robodoo retry

[robodoo]

@lse-odoo @StraubCreative staging failed: ci/runbot on b448f5ab742695be8f3744c1c550f47d06bc15c2 (view more at https://runbot.odoo.com/runbot/build/62521402)

[StraubCreative]

@robodoo retry