handle html pastes

[ianstormtaylor]

No description provided.

[ianstormtaylor]

Not going to be handled natively, since it depends on the schema, but added an example of how it works non-natively. There's definitely a good case for having a slate-paste-html plugin that makes the mapping easier so that you could just do:

const plugins = [
  new PasteHtmlPlugin({
    boldMark: 'bold',
    italicMark: 'italic',
    codeMark: 'code',
    underlinedMark: 'underline',
    listItemBlock: 'list-item',
    orderedListBlock: 'numbered-list',
    ...
]

And later:

<Editor
  plugins={plugins}
  ...
  />