Broken README link

[brandonros]

https://github.com/bodil/typed-html/blob/master/dom/trait.Node.html seems like it should point to some variation of

typed-html/typed-html/src/dom.rs

Line 69 in a1a4f8f

pub trait Node<T: OutputType>: Display {

in ### Render to a virtual DOM

[bodil]

The README is currently generated directly from the docs in the toplevel source file, and the internal doc links aren't being rewritten. Will investigate a fix, or I suppose it'll have to be done manually.