Supported for VuePress 2.0.0-beta.40 or later

Usage of plugin is changed since VuePress 2.0.0-beta.40
See also VuePress change logs

This version is supported the breaking changes.
If you use version 1.0.0, please check README.md

• Merge pull request #2 from monsat/fix-vuepress-update 5762744
• Merge pull request #1 from monsat/fix-vuepress-update a39c624
• docs: update for version 1.0.1 355f05d
• refactor: import plugin file 9848a7c
• feat: update VuePress version 0d3b464
• docs: add windi css settings 999a695

v1.0.0...v1.0.1