add script to build docs

package.json

@@ -4,7 +4,8 @@
   "description": "Datadog API Node.JS Client",
   "main": "lib/index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "docs": "node ./docs/create.js > index.html"
   },
   "repository": {
     "type": "git",