添加html支持

packages/html2md/package.json

@@ -2,7 +2,8 @@
     "name": "@hydrooj/html2md",
     "version": "1.0.0",
     "description": "turn html into markdown",
-    "main": "package.json",
+    "main": "lib.js",
+    "typings": "lib.d.ts",
     "repository": "https://github.com/hydro-dev/Hydro.git",
     "author": "undefined <masnn0@outlook.com>",
     "license": "AGPL-3.0-only",
@@ -19,4 +20,4 @@
         "build": "tsc",
         "lint": "eslint . --ext ts --fix"
     }
-}
+}