Updated docs

Author: IonicaBizau

README.md

@@ -18,9 +18,17 @@ $ npm i --save bloggify-passport
 
 
 ```js
-const bloggifyPassport = require("bloggify-passport");
-
-console.log(bloggifyPassport());
+...
+"bloggify-passport": {
+    login_url: "/user/signin",
+    verify_callback (email, password, cb) {
+        if (email === "[email protected]" && password === "42") {
+            return cb(null, { name: "foo" })
+        }
+        cb(new Error("Invalid username or password."))
+    }
+},
+...
 ```