refactor: init cypress-cucumber-preprocessor install.

node_modules/acorn-node/README.md

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+# acorn-node
+
+[Acorn](https://github.com/acornjs/acorn) preloaded with plugins for syntax parity with recent Node versions.
+
+It also includes versions of the plugins compiled with [Bublé](https://github.com/rich-harris/buble), so they can be run on old Node versions (0.6 and up).
+
+[![npm][npm-image]][npm-url]
+[![travis][travis-image]][travis-url]
+[![standard][standard-image]][standard-url]
+
+[npm-image]: https://img.shields.io/npm/v/acorn-node.svg?style=flat-square
+[npm-url]: https://www.npmjs.com/package/acorn-node
+[travis-image]: https://img.shields.io/travis/browserify/acorn-node/master.svg?style=flat-square
+[travis-url]: https://travis-ci.org/browserify/acorn-node
+[standard-image]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square
+[standard-url]: http://npm.im/standard
+
+## Install
+
+```
+npm install acorn-node
+```
+
+## Usage
+
+```js
+var acorn = require('acorn-node')
+```
+
+The API is the same as [acorn](https://github.com/acornjs/acorn), but the following syntax features are enabled by default:
+
+ - Bigint syntax `10n`
+ - Numeric separators syntax `10_000`
+ - Public and private class instance fields
+ - Public and private class static fields
+ - Dynamic `import()`
+ - The `import.meta` property
+ - `export * as ns from` syntax
+
+And the following options have different defaults from acorn, to match Node modules:
+
+ - `ecmaVersion: 2019`
+ - `allowHashBang: true`
+ - `allowReturnOutsideFunction: true`
+
+```js
+var walk = require('acorn-node/walk')
+```
+
+The Acorn syntax tree walker. Comes preconfigured for the syntax plugins if necessary.
+See the [acorn documentation](https://github.com/acornjs/acorn#distwalkjs) for details.
+
+## License
+
+The files in the repo root and the ./test folder are licensed as [Apache-2.0](LICENSE.md).
+
+The files in lib/ are generated from other packages:
+
+- lib/bigint: [acorn-bigint](https://github.com/acornjs/acorn-bigint]), MIT
+- lib/class-private-elements: [acorn-class-private-elements](https://github.com/acornjs/acorn-class-private-elements), MIT
+- lib/dynamic-import: [acorn-dynamic-import](https://github.com/acornjs/acorn-dynamic-import), MIT
+- lib/export-ns-from: [acorn-export-ns-from](https://github.com/acornjs/acorn-export-ns-from), MIT
+- lib/import-meta: [acorn-import-meta](https://github.com/acornjs/acorn-import-meta), MIT
+- lib/numeric-separator: [acorn-numeric-separator](https://github.com/acornjs/acorn-numeric-separator]), MIT
+- lib/static-class-features: [acorn-static-class-features](https://github.com/acornjs/acorn-static-class-features), MIT