add react and react-dom to devDependencies again

nkzawa · nkzawa · commit bfab00a3ee09 · 2017-02-09T22:49:32.000+09:00
diff --git a/package.json b/package.json
@@ -104,6 +104,8 @@
     "jest-cli": "^18.0.0",
     "node-fetch": "^1.6.3",
     "nyc": "^10.0.0",
+    "react": "15.4.2",
+    "react-dom": "15.4.2",
     "run-sequence": "1.2.2",
     "standard": "8.6.0",
     "wd": "^1.1.3",
