Update README.md with adjustClonedNode and onclone options

[juliendorra]

This two key options were missing from the list of options.

I had to hunt down infos about them in different places, I think it's helpful to have them explained with other options.

[IDisposable]

Awesome! Thanks tons... one request... for the onClone doc section, could you point at a jsFiddle that shows how to use it?

This trivial example would be good sample

[juliendorra]

Hi,

I feel like the jsFiddle should be added in the Usage section, not the list of options, like for the adjustClonedNode option where there is a specific usage example.

So my suggestion is: let's merge it like that, it's a small addition, and another pull request could be written for the Usage section, with maybe a re-organisation of the Readme