Update readme

Author: danschultzer

README.md

@@ -31,7 +31,7 @@ Run `mix deps.get` to install it.
 
 ## Getting started (Phoenix)
 
-**Umbrella project:** In an umbrella project run `mix pow.ecto.install` inside your Ecto app instead of `mix pow.install`, and then continue with updating `config.ex`, `endpoint.ex` and `router.ex` inside your Phoenix app.
+**Umbrella project:** In an umbrella project run `mix pow.ecto.install` inside your Ecto app instead of `mix pow.install`, and then continue with updating `config.ex`, `endpoint.ex` and `router.ex` inside your Phoenix app using `:my_app_web` in place of `:my_app` as the otp app.
 
 Install the necessary files:
 

test/pow/ecto/schema/password_test.exs

@@ -7,7 +7,7 @@ defmodule Pow.Ecto.Schema.PasswordTest do
   @password "secret"
 
   test "pbkdf2_hash/1" do
-    assert [algo, iterations, salt, _hash] = String.split(Password.pbkdf2_hash(@password, []), "$", trim: true)
+    assert [algo, iterations, _salt, _hash] = String.split(Password.pbkdf2_hash(@password, []), "$", trim: true)
 
     assert algo == "pbkdf2-sha512"
     assert iterations == "100000"