Update readme.md

Author: wooorm

readme.md

@@ -1,10 +1,12 @@
-# mdast-util-heading-style [![Build Status][travis-badge]][travis] [![Coverage Status][coverage-badge]][coverage]
+# mdast-util-heading-style [![Build Status][build-badge]][build-status] [![Coverage Status][coverage-badge]][coverage-status] [![Chat][chat-badge]][chat]
 
-Utility to get the style of an [**mdast**][mdast] heading.
+<!--lint disable list-item-spacing heading-increment list-item-indent-->
+
+Get the style of an [**MDAST**][mdast] heading.
 
 ## Installation
 
-[npm][npm-install]:
+[npm][]:
 
 ```bash
 npm install mdast-util-heading-style
@@ -33,39 +35,55 @@ style(remark.parse('### ATX').children[0], 'setext'); // 'setext'
 
 Get the heading style of a node.
 
-**Parameters**:
-
-*   `node` ([`Node`][mdast-node]);
+###### Parameters
 
+*   `node` ([`Node`][node]) — Node to parse;
 *   `relative` (`string`, optional) — Style to use for ambiguous headings
     (atx-headings with a level of three or more could also be setext).
 
-**Returns**: `string` (`'atx'`, `'atx-closed'`, or `'setext'`)
-— When an ambiguous heading is found, either `relative` or `null` is
-returned.
+###### Returns
+
+`string` (`'atx'`, `'atx-closed'`, or `'setext'`) — When an ambiguous
+heading is found, either `relative` or `null` is returned.
+
+### `Marker`
+
+A comment marker.
+
+###### Properties
+
+*   `name` (`string`) — Name of marker;
+*   `attributes` (`string`) — Value after name;
+*   `parameters` (`Object`) — Parsed attributes, tries to convert
+    values to numbers and booleans when possible;
+*   `node` ([`Node`][node]) — Reference to given node.
 
 ## License
 
-[MIT][license] © [Titus Wormer][home]
+[MIT][license] © [Titus Wormer][author]
 
 <!-- Definitions -->
 
-[travis-badge]: https://img.shields.io/travis/wooorm/mdast-util-heading-style.svg
+[build-badge]: https://img.shields.io/travis/wooorm/mdast-util-heading-style.svg
 
-[travis]: https://travis-ci.org/wooorm/mdast-util-heading-style
+[build-status]: https://travis-ci.org/wooorm/mdast-util-heading-style
 
 [coverage-badge]: https://img.shields.io/codecov/c/github/wooorm/mdast-util-heading-style.svg
 
-[coverage]: https://codecov.io/github/wooorm/mdast-util-heading-style
+[coverage-status]: https://codecov.io/github/wooorm/mdast-util-heading-style
 
-[mdast]: https://github.com/wooorm/mdast
-
-[mdast-node]: https://github.com/wooorm/mdast#node
+[chat-badge]: https://img.shields.io/gitter/room/wooorm/remark.svg
 
-[npm-install]: https://docs.npmjs.com/cli/install
+[chat]: https://gitter.im/wooorm/remark
 
 [releases]: https://github.com/wooorm/mdast-util-heading-style/releases
 
 [license]: LICENSE
 
-[home]: http://wooorm.com
+[author]: http://wooorm.com
+
+[npm]: https://docs.npmjs.com/cli/install
+
+[mdast]: https://github.com/wooorm/mdast
+
+[node]: https://github.com/wooorm/mdast#node