README Usage says import page-flip.browser.js but where is this

[a4992214]

The page https://github.com/Nodlik/StPageFlip#usage says

If you've installed the package from npm, you should import PageFlip from page-flip package, or just use tag:

<script src="{path/to/scripts}/page-flip.browser.js"></script>

But having downloaded the package as a zip (containing the STPageFlip-master with a /src folder) I cannot find any page-flip.browser.js file. Is this missing?