bump peer deps

Author: staylor

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-helmet-async",
-  "version": "0.2.0-beta.1",
+  "version": "0.2.0",
   "description": "Thread-safe Helmet for React 16+ and friends",
   "main": "lib/index.js",
   "repository": "http://github.com/NYTimes/react-helmet-async",
@@ -43,8 +43,8 @@
     "regenerator-runtime": "^0.11.1"
   },
   "peerDependencies": {
-    "react": "^16.4.1",
-    "react-dom": "^16.4.1"
+    "react": "^16.4.2",
+    "react-dom": "^16.4.2"
   },
   "scripts": {
     "test": "jest",