added licenses and webview for them

added link to github page

app/screens/WebViewScreen.tsx

@@ -0,0 +1,10 @@
+import React from 'react'
+import { WebView } from 'react-native-webview'
+
+const WebViewScreen: React.FC<{
+  uri: string
+}> = ({ uri }) => {
+  return <WebView source={{ uri }} />
+}
+
+export default WebViewScreen