Add assertions for plugins to `test/index.js`
Add assertions for plugins to `test/index.js`

eush77/remark,yukkurisinai/mdast,eush77/remark,ulrikaugustsson/mdast,chcokr/mdast,chcokr/mdast,ulrikaugustsson/mdast,wooorm/remark,yukkurisinai/mdast,tanzania82/remarks