add logic for additional image link rule

add DW wikilink syntax converter

Revert "auto parsing slash to colon inside wikilink"

This reverts commit 41bb96e58a7e78dafbb7d90816ef3412ade890ed.

auto parsing slash to colon inside wikilink

remove lang.php

fix frontmatter rendering issue

modify frontmatter_tag message

update package

fix frontmatter check

add tag setting

add frontmatter tag process option

Move tag location to bottom

downgrade symfony/yaml for compatible to PHP 7.x

add VERY basic support of frontmatter_based tag

updated to 2.1.x

first 2.0 implementation - at least no error

ready for v1.2.1

theleague/commonmark 2.0.x compatibility matching

fix multiline indented code block rendering issue

fix escaping issue on indented code block

fix hr rendering error after list (#16)

update README

update plugin info

add force_commonmark option

Add link to info string and add example for clarity