Change basic usage

Author: Nhacsam

README.md

@@ -28,10 +28,17 @@ render() {
     <HeaderImageScrollView
       maxHeight={200}
       minHeight={MIN_HEIGHT}
-      headerImage={require('../../assets/NZ.jpg')}
+      headerImage={require("../../assets/NZ.jpg")}
+      renderForeground={() => (
+        <View style={{ height: 150, justifyContent: "center", alignItems: "center" }} >
+          <TouchableOpacity onPress={() => console.log("tap!!")}>
+            <Text style={{ backgroundColor: "transparent" }}>Tap Me!</Text>
+          </TouchableOpacity>
+        </View>
+      )}
     >
       <View style={{ height: 1000 }}>
-        <TriggeringView onHide={() => console.log('text hidden')} >
+        <TriggeringView onHide={() => console.log("text hidden")}>
           <Text>Scroll Me!</Text>
         </TriggeringView>
       </View>