Publish v1.3.6 release

A excellent markdown preview extension for Visual Studio Code, Version 1.3.6.
https://marketplace.visualstudio.com/items?itemName=jhuix.markdown-preview-showdown

1. Update @jhuix/showdowns v0.5.5:

   • Fixed failed to mark CSS link related to render only inline katex math..

   • Add a additional delimiters format of katex options.

2. Adjust the name of all settings;

3. Split katexDelimiters setting into 4 delimiters settings.

4. Fixed failed to render inine katex math when open html in browser or create local html.