v0.5.2

1. Fixed method removeAsyncExtension and removeExtension of showdowns could not remove related extensions.

v0.5.1

1. Update asciimath to latex that be based on ASCIIMathTeXImg.js, latest version.

2. Rewrite the parsing method of showdown.js into a file and place it in a separate directory.

3. Update mermaid deps is new version 8.8.2.

4. Inline LaTex math syntax compatible with KaTex default delimiters, and inline ascii math syntax is changed to @@...@@ or \~...\~.

5. Support multiple math are separated by an empty line in block math code.

v0.5.0

1. Add showdown-container and table extensions.

v0.4.0

1. Add render diagram mode is asynchronous using promise-resolve.
   Includes the following diagram extensions, but exclude showdown-sequence:

   showdown-plantuml
   showdown-mermaid
   showdown-katex'
   showdown-flowchart
   showdown-viz
   showdown-vega
   showdown-wavedrom
   showdown-railroad

v0.3.6

1. Fixed no dynamic loaded katex library, and reducing release file size.

2. Add codeblock field of json in syntax language attribute.

3. Add removeExtension and addExtension functions, delete addExtensions function.

4. Update defaultExtensions of property is object of extensions.

v0.3.3

1. Support align field of more diagrams that vaule is selected empty("left") or "center" or "right" in code language attribute.

2. Support render svg format for vega and vega-lite diagrams.

v0.3.1

1. Support TOC and sub-TOC.

2. Support Text-Align.

3. Support more diagrams:

   Support LaTeX math and AsciiMath

   Support Mermaid

   Support Plantuml

   Support Flowchart

   Support Network Sequence

   Support Graphviz's dot

   Support Railroad diagrams

   Support WaveDrom