Update readme

Author: raphaelpor

README.md

@@ -37,7 +37,7 @@ const fitch = require('fitch')
 **UMD:**
 
 ```html
-<script src="node_modules/fitch/src/index.js"></script>
+<script src="node_modules/fitch/dist/index.umd.min.js"></script>
 ```
 
 ### Make your first request:
@@ -108,8 +108,6 @@ See more about fetch configuration at: [Fetch API](https://developer.mozilla.org
 | --------- | --------- | --------- | --------- | --------- | --------- |
 | IE10, IE11, Edge| Every versions| Every versions| 6.1+|
 
-Note: This assumes that you’re using a transpiler like Babel.
-
 Note: modern browsers such as Chrome, Firefox, and Microsoft Edge contain native implementations of window.fetch, so the polyfill doesn't have any affect on those browsers. See more at [window.fetch polyfill](https://github.com/github/fetch).
 
 ## Contributig