Add yt-dlp config.

.config/yt-dlp.conf

@@ -0,0 +1,10 @@
+--convert-subs vtt
+--embed-chapters
+--embed-subs
+--format 'bestvideo[height<=720]+bestaudio/best[height<=720]'
+--merge-output-format mkv
+--output "%(uploader)s/%(upload_date)s %(title)s (%(id)s).%(ext)s"
+--sponsorblock-remove sponsor
+--sub-format vtt/srt/best
+--sub-langs en
+--write-auto-subs