[WIP] fix some spelling issues, standardis(z)e to US English

[matt-fidd]

Quick whip through to try and standardis(z)e some language, looks like the most common English in the docs is US English so I chose that one, but if we'd prefer the Queen's then that's okay too.

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@check-spelling-bot Report

🔴 Please review

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Unrecognized words (6)

gocardless
nordigen
nynab
ofx
pikapods
simplefin

These words are not needed and should be removed

Cardless Nordigen OFX YNAB

To accept these unrecognized words as correct and remove the previously acknowledged and now absent words, you could run the following commands

... in a clone of the [email protected]:matt-fidd/actual-docs.git repository
on the spelling-us branch (ℹ️ how do I use this?):

curl -s -S -L 'https://raw.githubusercontent.com/check-spelling/check-spelling/main/apply.pl' |
perl - 'https://github.com/actualbudget/docs/actions/runs/12059903721/attempts/1'

Errors (1)

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