Menu

Estou fazendo as aulas do curso Android I: Crie sua App fantástica com Android Studio.

Na aula 3, sobre menus, não consigo criar o menu na activity com o formulário, crio o arquivo xml e inflo ele com o método posto no arquivo .java do formulário, mas quando vou ver, o menu está embaixo da textView nome.

Activity_formulario.xml:

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context="com.example.eduardo.agenda.Formulario">

    <include layout="@layout/content_formulario" />


</android.support.design.widget.CoordinatorLayout>

content_formulario.xml:

<?xml version="1.0" encoding="utf-8"?>
<ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/content_formulario"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        >

        <EditText
            android:hint="Nome"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/nome"/>

        <EditText
            android:hint="Endereço"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/endereco"/>

        <EditText
            android:hint="Telefone"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/telefone"/>

        <EditText
            android:hint="Site"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/site"/>

        <RatingBar
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:numStars="5"
            android:max="10"
            android:layout_gravity="center"/>

    </LinearLayout>

</ScrollView>

Formulario.java:

package com.example.eduardo.agenda;

import android.app.Dialog;
import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class Formulario extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_formulario);

    }

    @Override //método dos menus da toolbar
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.menu_formulario, menu);

        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
           switch(item.getItemId()){
               case R.id.menForm:
                   Toast.makeText(Formulario.this, "Salvo", Toast.LENGTH_SHORT).show();
                   finish();
                    break;
               default:
                   Log.d("INFO","##1default menu");
                   break;
           }
        return super.onOptionsItemSelected(item);
    }
}

menu_formulario.xml:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
tools:context="com.example.eduardo.agenda.MainActivity" >
<item android:id="@+id/menForm"
    android:title="Save"
    android:orderInCategory="100"
    app:showAsAction="always" />
</menu>

Obs: a única preview que mostra o erro, é a preview da activity, logo acredito que seja nesta onde se encontra o problema. Exclui as tags que formavam a toolbox que vem na criação do arquivo.

Alguém saberia o que posso fazer para arrumar?