docs: improve information about loader order (#65)

Author: evilebottnawi

README.md

@@ -65,12 +65,18 @@ And run `webpack` via your preferred method.
 
 ## Examples
 
-Inline.
+### Inline
 
 ```js
 import txt from 'raw-loader!./file.txt';
 ```
 
+Beware, if you already define loader(s) for extension(s) in `webpack.config.js` you should use:
+
+```js
+import css from '!!raw-loader!./file.css'; // Adding `!!` to a request will disable all loaders specified in the configuration
+```
+
 ## License
 
 #### [MIT](./LICENSE)