Proposal: Semantic linefeeds (aka semantic newlines)

Now that we have the specs in markdown, and documentation formatting machinery, it makes sense for our source code to use a form which is optimised for editing, diffing, review, and so on.

This article from 2012 is when I first came across a description, although I had been doing this myself for a while. Many other people have advocated/adopted this convention.

I suggest that as we rewrite/rework/modify text (apropos tpo/community/hackweek#19 (closed)), we should convert it to this format.

We should also consider adding editor control files to turn off automatic paragraph rewrapping.

FTAOD I am not proposing to relax the current line length limit. Text should be manually wrapped. If people start making lines that are too long we may need a CI check.