[IMP] subscriptions: updated upsell sub doc

[ksc-odoo]

PROJECT TASK: https://www.odoo.com/web#id=3629093&cids=3&menu_id=4720&action=333&active_id=3835&model=project.task&view_type=form

[robodoo]

Pull request status dashboard.

[ksc-odoo]

Hey @meng-odoo this one's ready for its first round of Peer Review! 👍

[jero-odoo]

@ksc-odoo just a few small changes, approving and sending on to @samueljlieber for tech/final review 👍

[ksc-odoo]

Thanks for the feedback @jero-odoo -- I made those minor adjustments, so it's ready for your Technical Review skills/expertise now, @samueljlieber 👍

[samueljlieber]

Hi @ksc-odoo, nice job with the improvements in this PR! I will push up a commit to fix this one correction. Thank you!

[samueljlieber]

@ksc-odoo if you want to format a line break, use | at the start of the line and then indent a space for any lines that you want to wrap normally under the first line 🙂

Suggested change

	#. *Loyal Customers*
	These are customers who already trust the company/brand, and because they have established a
	pattern of paying for products/services, there's more confidence behind the attempt to sell them
	a more expensive product/service.
	#. | *Loyal Customers*
	| These are customers who already trust the company/brand, and because they have established a
	pattern of paying for products/services, there's more confidence behind the attempt to sell
	them a more expensive product/service.

[samueljlieber]

@StraubCreative this PR is good to go 👍

[StraubCreative]

@robodoo r+