update README to include the mandatory --

pkgs/create-neon/README.md

@@ -11,9 +11,11 @@ You can conveniently use this tool with the [`npm init`](https://docs.npmjs.com/
 To create a simple Neon project that consists purely of Rust code:
 
 ```sh
-$ npm init neon [<opts> ...] my-project
+$ npm init neon -- [<opts> ...] my-project
 ```
 
+**Note:** The initial `--` is necessary for `npm init` to pass any command-line options to Neon.
+
 #### Global Options
 
 ```sh
@@ -27,9 +29,11 @@ Neon also makes it easy to create **portable, cross-platform libraries** by publ
 To create a portable npm library with pre-built binaries:
 
 ```sh
-$ npm init neon [<opts> ...] --lib [<lib-opts> ...] my-project
+$ npm init neon -- [<opts> ...] --lib [<lib-opts> ...] my-project
 ```
 
+**Note:** The initial `--` is necessary for `npm init` to pass any command-line options to Neon.
+
 This will generate a project that can be used by pure JavaScript or TypeScript consumers without them even being aware of the use of Rust under the hood. It achieves this by publishing pre-built binaries for common Node platform architectures that are loaded just-in-time by a JS wrapper module.
 
 This command generates the necessary npm and CI/CD configuration boilerplate to require nearly zero manual installation on typical GitHub-hosted repos. The only manual step required is to configure GitHub Actions with the necessary npm access token to enable automated publishing.