Merge pull request #93 from ralsina/update_readme

Updated options in the README

Author: nobodywasishere

README.md

@@ -55,7 +55,8 @@ Markd.to_html(markdown, options)
 | source_pos  | `Bool` | false         | if **true**, source position information for block-level elements<br />will be rendered in the data-sourcepos attribute (for HTML)                                              |
 | safe        | `Bool` | false         | if **true**, raw HTML will not be passed through to HTML output (it will be replaced by comments)                                                                               |
 | prettyprint | `Bool` | false         | if **true**, code tags generated by code blocks will have a `prettyprint` class added to them, to be used by [Google code-prettify](https://github.com/google/code-prettify).   |
-| gfm         | `Bool` | false         | **Not supported for now**                                                                                                                                                         |
+| gfm         | `Bool` | false         | **Partial support**                                                                                                                                                         |
+| autolink    | `Bool` | false         | if **true**, more autolinks are detected, like bare email addresses or http links. Requires `gfm` be set to `true`                                  |
 | toc         | `Bool` | false         | **Not supported for now**                                                                                                                                                         |
 | base_url    | `URI?` | nil           | if not **nil**, relative URLs of links are resolved against this `URI`. It act's like HTML's `<base href="base_url">` in the context of a Markdown document.                    |