added entrypoint to create yt-dlp.conf on container run if not exist

default-yt-dlp.conf

@@ -0,0 +1,11 @@
+# yt-dlp config file (yt-dlp.conf or .config/yt-dlp/config)
+--simulate
+-f "bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best"
+--embed-chapters
+--embed-info-json
+--write-playlist-metafiles
+#--paths "{"home":"./downloads"}"
+--download-archive "/config/archive.txt"
+--restrict-filenames
+--output "/downloads/%(uploader)s/%(playlist_title)s/%(playlist_index)s%(playlist_index& - )s%(title)s.%(ext)s"
+# --split-chapters