Ensure CNAME survives doc rebuilds

Author: timdorr

CNAME

@@ -0,0 +1 @@
+redux.js.org

package.json

@@ -25,7 +25,7 @@
     "docs:prepare": "gitbook install",
     "docs:build": "npm run docs:prepare && gitbook build -g rackt/redux",
     "docs:watch": "npm run docs:prepare && gitbook serve",
-    "docs:publish": "npm run docs:clean && npm run docs:build && cd _book && git init && git commit --allow-empty -m 'update book' && git checkout -b gh-pages && touch .nojekyll && git add . && git commit -am 'update book' && git push [email protected]:rackt/redux gh-pages --force"
+    "docs:publish": "npm run docs:clean && npm run docs:build && cp CNAME _book && cd _book && git init && git commit --allow-empty -m 'update book' && git checkout -b gh-pages && touch .nojekyll && git add . && git commit -am 'update book' && git push [email protected]:rackt/redux gh-pages --force"
   },
   "repository": {
     "type": "git",