chore: update readmes and dependencies

packages/netlify-cms-widget-date/README.md

@@ -0,0 +1,11 @@
+# Docs coming soon!
+
+Netlify CMS was recently converted from a single npm package to a "monorepo" of over 20 packages.
+That's over 20 Readme's! We haven't created one for this package yet, but we will soon.
+
+In the meantime, you can:
+
+1. Check out the [main readme](https://github.com/netlify/netlify-cms/#readme) or the [documentation
+   site](https://www.netlifycms.org) for more info.
+2. Reach out to the [community chat](https://gitter.im/netlify/netlifycms/) if you need help.
+3. Help out and [write the readme yourself](https://github.com/netlify/netlify-cms/edit/master/packages/netlify-cms-widget-date/README.md)!

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

@@ -2,6 +2,9 @@
   "name": "netlify-cms-widget-date",
   "description": "Widget for editing dates in Netlify CMS.",
   "version": "2.0.0",
+  "homepage": "https://www.netlifycms.org/docs/widgets/#date",
+  "repository": "https://github.com/netlify/netlify-cms/tree/master/packages/netlify-cms-widget-date",
+  "bugs": "https://github.com/netlify/netlify-cms/issues",
   "main": "dist/netlify-cms-widget-date.js",
   "license": "MIT",
   "keywords": [
@@ -29,7 +32,7 @@
   "peerDependencies": {
     "emotion": "^9.2.6",
     "moment": "^2.11.2",
-    "netlify-cms-ui-default": "^2.0.0-alpha.0",
+    "netlify-cms-ui-default": "^2.0.0",
     "prop-types": "^15.5.10",
     "react": "^16.4.1",
     "react-emotion": "^9.2.6"