3.2.3

It contain some breaking change, but textlint don't define these as specification.
https://github.com/wooorm/remark/releases/tag/4.0.0

Fixes

• Fix parse error.
• node.type should always has value.

e.g. )

markdown-to-ast allows to parse table format without error.

| Hello | World  |
| :---- | -----: |
| How   |    are |
| you   | today? |

Tests

• Add much test cases that are come from remark test case

remark 4.x change related markdown-to-ast

https://github.com/wooorm/remark/releases/tag/4.0.0

• horizontalRule => thematicBreak( markdown-to-ast still use HorizontalRule)