there is no `assets` subdirectory

[Mithgol]

Currently README.md recommends the following:

<script type="text/javascript" src="assets/bundled.js"></script>

However,

• HTML5 script defaults to type="text/javascript" and thus that attribute can be dropped from the example,
• there is no assets subdirectory in the results of npm install ipfs and thus the path assets/bundled.js should be replaced by dist/index.min.js if appropriate.

[daviddias]

Seems that his is a leftover of pre 'dist' era. Currently, the installation method is the same for all the ipfs modules, that is:

As seen in : https://github.com/multiformats/js-multihash#in-the-browser-through-script-tag

@Mithgol would you like to submit a PR to fix that?

Thank you

[Mithgol]

Ok, here it goes.