The WELA documentation now lives on a dedicated docs site
(https://yamato-security.github.io/WELA/). Replace the long single-page README
with a short landing page that points there, and preserve the originals.
- README.md / README-Japanese.md -> OLD-README.md / OLD-README-Japanese.md
(their language-switcher cross-links updated to point at each other)
- New README.md: logo, badges, a prominent link to the docs site and its main
sections, downloads, links to the archived READMEs, and the MIT license
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>