No link to Javadoc

[michaelsproul]

I've looked around the README and the blog but can't find a link to the Javadoc. It would be convenient to provide one online so users don't have to build the docs themselves.

[jknack]

Just found http://www.javadoc.io/doc/com.github.jknack/handlebars/4.0.6

[michaelsproul]

Thanks @jknack!