fix: fixes browser script tag example (ipfs#3034)

Updates example syntax to new api, also removes references to `dist/index.js` in favour of `dist/index.min.js`.

fixes ipfs#3027

Author: achingbrain

package.json

@@ -3,7 +3,7 @@
   "private": true,
   "dependencies": {
     "dot-prop": "^5.0.0",
-    "ipfs": "^0.43.0",
+    "ipfs": "^0.43.3",
     "ipfs-css": "^0.13.1",
     "react": "^16.8.6",
     "react-dom": "^16.8.6",