Fix js code in README.md (commas)

Author: fredj

README.md

@@ -33,7 +33,7 @@ Or if you prefer OAuth, it looks like this:
 
 ```js
 var github = new Github({
-  token: "OAUTH_TOKEN"
+  token: "OAUTH_TOKEN",
   auth: "oauth"
 });
 ```
@@ -70,7 +70,7 @@ var pull = {
   title: message,
   body: "This pull request has been automatically generated by Prose.io.",
   base: "gh-pages",
-  head: "michael" + ":" + "prose-patch",
+  head: "michael" + ":" + "prose-patch"
 };
 repo.createPullRequest(pull, function(err, pullRequest) {});
 ```