Docs: replace version string with things that get substituted

Description

We've just fixed the version substitution so that it works in a code block as well as in other places.

This issue represents fixing everything we can find that is hard coded, or implied rather than explicit, so that it gets populated at build time.

Assignee

Ben Wyeth

Reporter

Ben Wyeth

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Priority

Medium

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Fix versions

Affects versions

Ported to...

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Story Points / Dev Days

1

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