The README had grown to 330 lines and was carrying three audiences at once:
installing, using, and working on ihasmail. docs.ihasmail.org covers the first
two now, and ihasmail.org covers the feature tour, so the README links there
instead of restating them.
- Known issues / pending QA → KNOWN-ISSUES.md, verbatim
- Roadmap / not yet → ROADMAP.md, verbatim (its "see Quick start" pointer now
aims at the install docs, since that section is gone)
- Dropped the env-var table (docs.ihasmail.org/configure/), the shortcut list
(/shortcuts/), the Docker quick start (/install/) and the long feature list
(ihasmail.org/#features), leaving a nav table at the top and a six-line
summary of what's in it
- Kept and tightened what is only true of this tree: architecture, dev
commands, the mock, version numbers, deploying
- Version examples refreshed from 2.16.57 to the current 2.16.84
