Added npm readme

.npmignore

@@ -1,4 +1,5 @@
 demo
 docs
 example
+githubREADME.md
 .gitignore

npmREADME.md

@@ -0,0 +1,3 @@
+# React Native Date Picker
+A cross platform <a href="https://github.com/henninghall/react-native-date-picker" title="React Native Date Pickers">react native date picker</a> component for android and ios. Including 3 different modes, date, time, and datetime. The date picker is customizable and have mulitple language support. 
+

package.json

@@ -4,7 +4,9 @@
   "description": "A Cross Platform React Native Picker",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "prepublish": "mv README.md githubREADME.md && mv npmREADME.md README.md",
+    "postpublish": "mv README.md npmREADME.md && mv githubREADME.md README.md"
   },
   "repository": {
     "type": "git",