Adding support for URLSearchParams in node (#1900)

* Adding support for URLSearchParams in node

* Remove un-needed code

* Update utils.js

* Make changes as suggested

Co-authored-by: Kamil Posiadala <kamil.posiadala@codecentric.de>
Co-authored-by: Jay <jasonsaayman@gmail.com>

README.md

@@ -726,6 +726,14 @@ const querystring = require('querystring');
 axios.post('http://something.com/', querystring.stringify({ foo: 'bar' }));
 ```
 
+or ['URLSearchParams'](https://nodejs.org/api/url.html#url_class_urlsearchparams) from ['url module'](https://nodejs.org/api/url.html) as follows:
+
+```js
+const url = require('url');
+const params = new url.URLSearchParams({ foo: 'bar' });
+axios.post('http://something.com/', params.toString());
+```
+
 You can also use the [`qs`](https://github.com/ljharb/qs) library.
 
 ###### NOTE