Support more syntax

Author: ksw2000

example/index.md

@@ -1,3 +1,5 @@
+[toc]
+
 # h1
 ## h2
 ### h3
@@ -7,21 +9,29 @@
 
 > blockquoute
 
-~~del~~ *italic* **bold** ++inserted++ 
+~~del~~ *italic* **bold** ++inserted++ ==marked==
 :accept: :smile: :+1: :aquarius: 
+H~2~O 29^th^
 
 [@hackmd/markdown-it](https://www.npmjs.com/package/@hackmd/markdown-it)
 
 ---
 
 + ul
+    + ul
+    + ul
 + ul
 + ul
 
 1. ol
 2. ol
 3. ol
 
+
+- [x] checked
+- [ ] unchecked
+
+
 | th | th | th  |
 |:---|:---:|---:|
 | left | center | right |
@@ -61,4 +71,22 @@ int main(){
     printf("hello\n");
     return 0;
 }
-```
+```
+
+## Abbr
+
+*[HTML]: Hyper Text Markup Language
+*[W3C]:  World Wide Web Consortium
+
+The HTML specification
+is maintained by the W3C.
+
+
+## Footnote
+Here is a footnote reference,[^1] and another.[^longnote]
+
+
+[^1]: Here is the footnote.
+[^longnote]: Here's one with multiple blocks.
+    Subsequent paragraphs are indented to show that they
+belong to the previous footnote.

lib/converter.ts

@@ -1,23 +1,48 @@
 import fs from 'fs';
 import path from 'path';
 const MarkdownIt = require('markdown-it');
+const MarkdownItSub = require('markdown-it-sub');
+const MarkdownItSup = require('markdown-it-sup');
+const MarkdownItFootnote = require('markdown-it-footnote');
+const MarkdownItDeflist = require('markdown-it-deflist');
+const MarkdownItAbbr = require('markdown-it-abbr');
+const MarkdownItEmoji = require('markdown-it-emoji');
 const MarkdownItContainer = require('markdown-it-container');
+const MarkdownItIns = require('markdown-it-ins');
+const MarkdownItMark = require('markdown-it-mark');
+
 const MarkdownItKaTex = require('markdown-it-katex');
-const MarkdownItEmoji = require('markdown-it-emoji');
-const MarkdownItTableOfContents = require("markdown-it-table-of-contents");
+const MarkdownItImsize = require('markdown-it-imsize');
+
+const MarkdownItTOC = require("markdown-it-table-of-contents");
+
 const md = new MarkdownIt({
     html: true,
     breaks: true,
     linkify: true,
     typographer: true
-}).use(MarkdownItTableOfContents, {
-    markerPattern: /^\[toc\]/im
-}).use(MarkdownItKaTex)
+})
+    .use(MarkdownItSub)
+    .use(MarkdownItSup)
+    .use(MarkdownItFootnote)
+    .use(MarkdownItDeflist)
+    .use(MarkdownItAbbr)
+    .use(MarkdownItMark)
     .use(MarkdownItEmoji)
     .use(MarkdownItContainer, 'success')
     .use(MarkdownItContainer, 'info')
     .use(MarkdownItContainer, 'warning')
-    .use(MarkdownItContainer, 'danger');
+    .use(MarkdownItContainer, 'danger')
+    .use(MarkdownItIns)
+    .use(MarkdownItKaTex)
+    .use(MarkdownItImsize)
+    .use(MarkdownItTOC, {
+        "markerPattern": /^\[toc\]/im,
+        "includeLevel": [1, 2, 3, 4]
+    })
+    .use(require("markdown-it-attrs"))
+    .use(require("markdown-it-anchor"))
+    ;
 
 export class Convert {
     src: Array<string>;