How to add a scroll view to an entire activity?

I tried adding a scroll view around everything on an activity layout but it gave me an error saying it can only be placed around one thing.

My activity, has a title textview then an image, then a description text view, and you can not read the whole description because its to long and goes below the edge of my screen. How can I make the whoel thing scrollable?

My xml looks like this:

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


    <TextView
        android:id="@+id/beerTitle"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:textSize="40sp"
        android:textStyle = "bold"
        >
    </TextView>

    <ImageView android:id="@+id/image"
        android:layout_height="wrap_content"
        android:layout_width="fill_parent"
        android:layout_margin="10dip"/>

    <Button
        android:id="@+id/buttonBrewery"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="" />
    <Button
        android:id="@+id/buttonStyle"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="" />

    <TextView
        android:id="@+id/beerDEscriptionTitle"
        android:textStyle = "bold"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:textSize="20sp"
        android:text="Description"
        ></TextView>
    <TextView
        android:id="@+id/beerDescription"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:textSize="15sp"

        ></TextView>