Writing million in currency

[adamliptrot-oc]

Style guide says to write "£6.5 million"

On Voicover iOS and Mac this reads as "6 pounds and fifty pence million"

Removing the space fixes this on the above but goes against the style guide.

[adamliptrot-oc]

The FT has now updated it's style to use "mn" for million instead of "m"

We've made a small but significant change to our abbreviation of millions: it's now ‘mn’ instead of ‘m’. This benefits those who use screen readers, which misreads the ‘m’ as metres

https://twitter.com/FinancialTimes/status/1489637761598566402