use one cdn (#2206)

Copy paste implies you might use both if you don't read. 😁 Use one of the two.

README.md

@@ -124,15 +124,22 @@ The CLI is available by using the command `jsipfs` in your terminal. This is ali
 Learn how to bundle with browserify and webpack in the [`examples`](https://github.com/ipfs/js-ipfs/tree/master/examples) folder.
 
 
-You can also load it using a `<script>` using the [unpkg](https://unpkg.com) CDN or the [jsDelivr](https://www.jsdelivr.com/package/npm/ipfs) CDN. Inserting one of the following lines will make a `Ipfs` object available in the global namespace.
+You can also load it using a `<script>` using the [unpkg](https://unpkg.com) CDN **or** the [jsDelivr](https://www.jsdelivr.com/package/npm/ipfs) CDN. Inserting one of the following lines will make a `Ipfs` object available in the global namespace.
 
 ```html
-<!-- loading the minified version -->
+<!-- loading the minified version using unpkg -->
 <script src="https://unpkg.com/ipfs/dist/index.min.js"></script>
-<script src="https://cdn.jsdelivr.net/npm/ipfs/dist/index.min.js"></script>
 
-<!-- loading the human-readable (not minified) version -->
+<!-- loading the human-readable (not minified) version using unpkg -->
 <script src="https://unpkg.com/ipfs/dist/index.js"></script>
+```
+**OR THIS:**
+
+```html
+<!-- loading the minified version using jsDelivr -->
+<script src="https://cdn.jsdelivr.net/npm/ipfs/dist/index.min.js"></script>
+
+<!-- loading the human-readable (not minified) version jsDelivr -->
 <script src="https://cdn.jsdelivr.net/npm/ipfs/dist/index.js"></script>
 ```