Displaying terms and conditions in an alert dialog - android

Question

I'm writing my own forum app. I've a MaterialTextView, I want to display an Alert showing terms and conditions with OK button. Here is the code:

<com.google.android.material.textview.MaterialTextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/desc"
            android:text="@string/welcome_users"
            android:fontFamily="@font/roboto_bold"
            android:textSize="20sp"/>  

Java code:

MaterialTextView desc;
@Override
protected void onCreate(Bundle savedInstanceState) {
    desc = findViewById(R.id.desc);
    desc.setOnClickListener(v -> showAlert());
}  
private void showAlert() {
        // setup the alert builder
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("Terms and Conditions");
        builder.setMessage("This is my message.");
        // add a button
        builder.setPositiveButton("OK", null);
        // create and show the alert dialog
        AlertDialog dialog = builder.create();
        dialog.show();
    }  

I've a sample Terms and Conditions like this: https://www.wikihow.com/Sample/Terms-and-Conditions-for-Forum.
I want to insert that into body (setMessage()) of that alert dialog. It is long, is there any better way to acheive it?