Paragraph alignment is not handled

[alep85]

Hi,
I'm using editor.js with a plugin that allows aligning paragraphs.
This plugin editorjs-paragraph-with-alignment generate the output data with alignment in addition to thetext:

Output data

Field	Type	Description
text	string	paragraph's text
alignment	string	left/center/right/justify

{
    "type" : "paragraph",
    "data" : {
        "text" : "Check out our projects on a <a href=\"https://github.com/codex-team\">GitHub page</a>.",
        "alignment": "left"
    }
}

Currently, the paragraph function adds only the text inside the tag p.

  paragraph: ({ data }) => {
    return `<p>${data.text}</p>`;
  }

I think it could be a good improvement to allow the parser check for alignment and set the paragraph text-align style with the alignment value.