docs: improve explanation of why webpack is used

Author: arechaithanya

src/content/guides/getting-started.mdx

@@ -182,7 +182,7 @@ To bundle the `lodash` dependency with `index.js`, we'll need to install the lib
 
 ```bash
 # npm
-npm install --save lodash
+npm install lodash
 
 # yarn
 yarn add lodash