Rewrite the README and the source comments in a plainer register.
The README had picked up the usual generated-prose tics: seventeen em
dashes, inline bold headers over every work item, signposting lines like
'the two scripts are called out because it matters', and a two-word
'Twenty of them.' dropped in for emphasis. Replaced with commas, real
section headings, and sentences that carry their own subject.
Also fixes the two rustdoc warnings cargo doc was emitting: <NAME> and
<N> in the subcommand doc comments were being parsed as unclosed HTML
tags. cargo doc is clean now.
States the scaffold status up front, documents what each verb shells out
to and why those tools come from your tree rather than being vendored, and
ends with a map of the 20 stubs grouped by how much they unblock.