Add license page

components/button.js

@@ -0,0 +1,18 @@
+import React from 'react'
+import { View } from 'react-native'
+import AppText from './app-text'
+import styles from '../styles'
+
+export default function Button({ backgroundColor, style, children }) {
+  return (
+    <View style={[
+      styles.button,
+      style,
+      {backgroundColor}
+    ]}>
+      <AppText style={styles.homeButtonText}>
+        {children}
+      </AppText>
+    </View>
+  )
+}