Added screenshots to show in README

Author: kashifo

app/src/main/java/lib/folderpicker/demo/MainActivity.java

@@ -120,7 +120,7 @@ void pickFile() {
 
         //Optional
 
-        intent.putExtra("title", "Select your backup folder");
+        intent.putExtra("title", "Select file to upload");
         intent.putExtra("location", Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).getAbsolutePath());
         intent.putExtra("pickFiles", true);