Published to NPM

Picobel is now available through NPM: npmjs.com/package/picobel

• ESM (ECMAScript module) version now the canonical Picobel: /esm/picobel.js.
• CJS (Common JS) version included for backwards compatibility. Not stored in repo, but created on upload to NPM registry with prepublishOnly script.
• "regular" version (for including by linking to a script file) maintained for posterity: /picobel.legacy.js

New installation process is documented in the /README.md