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README.md

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 # YouTube-Playlist-Query
 This application allows the user to query a youtube playlist and extract video ids from it. This includes the extraction of videos that are not already downloaded to your computer, as well as extraction all video ids in the playlist and a way to rename videos on your computer to match the current playlist index and title of the video.
 
+## Features:
+- Save all YouTube video ids in a given playlist to a .txt file
+- Save all YouTube video ids that are not downloaded to your computer to a .txt file
+- Rename video files on your computer to match the current video title and add the index of the video in the playlist as prefix to it
 
 ## How to use:
 1. Open the programm and enter the playlist id.