- Docs: Indicate --save flag for installing

README.md

@@ -73,7 +73,7 @@ incorporating SVGEdit. You will need to have Node.js/npm installed.
 1. Create and enter an empty folder somewhere on your desktop.
 1. Create your npm package: `npm init` (complete the fields).
 1. Install SVG-edit into your package:
-  `npm i svgedit`.
+  `npm i --save svgedit`.
 1. Look within `node_modules/svgedit/`, e.g., `node_modules/svgedit/editor/svg-editor.html`
   for the files your package needs and use accordingly.
 1. If you want to publish your own work, you can use `npm publish`.