Ao executar o arquivo no prompt de comando aparece o seguinte erro:
`C:\Users\Denise\alura-node>npm run cli validar
lib-markdown@1.0.0 cli C:\Users\Denise\alura-node node cli.js ./arquivos/texto1.md "validar"
(node:10348) ExperimentalWarning: The ESM module loader is experimental.
(node:10348) UnhandledPromiseRejectionWarning: Error [ERR_UNSUPPORTED_ESM_URL_SCHEME]: Only file and data URLs are supported by the default ESM loader
at Loader.defaultResolve [as resolve] (internal/modules/esm/resolve.js:698:11)
at Loader.resolve (internal/modules/esm/loader.js:97:40)
at Loader.getModuleJob (internal/modules/esm/loader.js:243:28)
at ModuleWrap. (internal/modules/esm/modulejob.js:47:40)
at link (internal/modules/esm/module_job.js:46:36)
(node:10348) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag --unhandled-rejections=strict (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 6)
(node:10348) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.`
