migrate markdown widget

packages/netlify-cms-widget-markdown/package.json

@@ -0,0 +1,53 @@
+{
+  "name": "netlify-cms-widget-markdown",
+  "description": "Widget for editing markdown in Netlify CMS.",
+  "version": "2.0.0-alpha.0",
+  "main": "dist/netlify-cms-widget-markdown.js",
+  "license": "MIT",
+  "keywords": [
+    "netlify",
+    "netlify-cms",
+    "widget",
+    "markdown",
+    "editor"
+  ],
+  "sideEffects": false,
+  "scripts": {
+    "watch": "webpack -w",
+    "build": "webpack"
+  },
+  "dependencies": {
+    "is-hotkey": "^0.1.1",
+    "mdast-util-definitions": "^1.2.2",
+    "mdast-util-to-string": "^1.0.4",
+    "rehype-parse": "^3.1.0",
+    "rehype-remark": "^2.0.0",
+    "rehype-stringify": "^3.0.0",
+    "remark-parse": "^3.0.1",
+    "remark-rehype": "^2.0.0",
+    "remark-stringify": "^3.0.1",
+    "slate": "^0.30.0",
+    "slate-edit-list": "^0.10.1",
+    "slate-edit-table": "^0.12.0",
+    "slate-plain-serializer": "^0.4.0",
+    "slate-react": "0.10.11",
+    "slate-soft-break": "^0.6.0",
+    "unified": "^6.1.4",
+    "unist-builder": "^1.0.2",
+    "unist-util-visit-parents": "^1.1.1"
+  },
+  "devDependencies": {
+    "webpack": "^4.16.1",
+    "webpack-cli": "^3.1.0"
+  },
+  "peerDependencies": {
+    "immutable": "^3.7.6",
+    "lodash": "^4.17.10",
+    "netlify-cms-ui-default": "^2.0.0-alpha.0",
+    "prop-types": "^15.5.10",
+    "react": "^16.4.1",
+    "react-dom": "^16.0.0",
+    "react-emotion": "^9.2.5",
+    "react-immutable-proptypes": "^2.1.0"
+  }
+}