Rollup requires to set options = { input, output ... }

[brandousov]

(!) You have passed an unrecognized option
Unknown input options: entry, dest. Allowed options: acorn, acornInjectPlugins, cache, context, experimentalCacheExpiry, external, inlineDynamicImports, input, manualChunks, moduleContext, onwarn, perf, plugins, preserveEntrySignatures, preserveModules, preserveSymlinks, shimMissingExports, strictDeprecations, treeshake, watch
rollup v2.12.0 for default config:

export default {
  entry: ...,
  dest: ...,
  plugins: [... ]
}

[thgh]

PR welcome to fix the readme!