AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="ydirson.notestrainer"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:label="@string/appname" >
        <activity android:name="MainMenu"
                  android:label="@string/appname">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name="ReadNotes"
                  android:label="@string/appname_readnotes">
            <intent-filter>
                <action android:name="android.support.PARENT_ACTIVITY" />
                <category android:name="ydirson.notestrainer.MainMenu" />
            </intent-filter>
        </activity>
        <activity android:name="Prefs"
                  android:label="@string/appname_prefs">
            <intent-filter>
                <action android:name="android.support.PARENT_ACTIVITY" />
                <category android:name="ydirson.notestrainer.MainMenu" />
            </intent-filter>
        </activity>
    </application>
</manifest>