扩展的 markdown 解析

在 marked 基础上增加了 section 语法
同时将其切分模块, 方便自己二次开发, 其余用法都参照 marked

增加的 section 用法:

:::section
- method: GET
- api: /media/`media-id`/likes
- url: https://api.instagram.com/v1/media/555/likes?access_token=ACCESS-TOKEN
- request:
{
    "username": "tom",
    "password": "******"
}
- response:
{
    "data": [{
        "username": "jack",
        "first_name": "Jack",
        "last_name": "Dorsey",
        "type": "user",
        "id": "66"
     }, {
         "username": "sammyjack",
         "first_name": "Sammy",
         "last_name": "Jack",
         "type": "user",
         "id": "29648"
     }]
}
- desc:
  Get a list of users who have liked this media.  
  Required scope: likes
- params:
  username   tom
  password   ******
:::

将生成以下类似的结构:

<section class="api-section" id="api-section-1">
    <header>
        <span class="api-method">GET</span>
        <span class="api-rule">/media/<code>media-id</code>/likes</span>
    </header>
    <div class="api-request">
        <pre>
            <code class="lang-json">
            {
                    &quot;username&quot;: &quot;tom&quot;,
                    &quot;password&quot;: &quot;******&quot;,
            }
            </code>
        </pre>
    </div>
    <div class="api-response">
        <pre>
            <code class="lang-json">
            {
                    &quot;data&quot;: [{
                    &quot;username&quot;: &quot;jack&quot;,
                    &quot;first_name&quot;: &quot;Jack&quot;,
                    &quot;last_name&quot;: &quot;Dorsey&quot;,
                    &quot;type&quot;: &quot;user&quot;,
                    &quot;id&quot;: &quot;66&quot;
                }, {
                    &quot;username&quot;: &quot;sammyjack&quot;,
                    &quot;first_name&quot;: &quot;Sammy&quot;,
                    &quot;last_name&quot;: &quot;Jack&quot;,
                    &quot;type&quot;: &quot;user&quot;,
                    &quot;id&quot;: &quot;29648&quot;
                }]
            }
            </code>
        </pre>
    </div>
    <div class="api-description">
        <p>
            Get a list of users who have liked this media.
            Required scope: likes
        </p>
    </div>
    <div class="api-parameter">
        <ul>
            <li>
                <em>username</em>
                <span>tom</span>
            </li>
            <li>
                <em>password</em>
                <span>******</span>
            </li>
        </ul>
    </div>
</section>