updated README

README

@@ -4,42 +4,66 @@ viewing and interacting with YouTube videos.
 Dependencies:
 - curl(1)
 - jq(1)
-- mpv(1)
 - yt-dlp(1)
 
-Variables:
+Environment Variables:
+$DEBUG
+- Set this variable to get debug output to stderr
+
+$PLAYER
+- Set this variable to a video player that can utilize yt-dlp to playback
+videos from YouTube
+
 $YTPICK
 - Set this variable to a dmenu-compatible picker for use with the pick
-subcommand.
+subcommand
+
+$YT_PL_DIR
+- Set this variable to the directory where playlists should be stored; defaults
+to $XDG_DATA_HOME/yt
+
 
 Usage:
-yt add | archive | cache | clone | music | pick | play | queue | verify
+yt add | archive | cache | clone | list | localsearch | new | pick | play | queue | search | sync | verify
 
-add uri file
+add uri playlist
 - Adds a video by URI to a playlist
 
 archive uri...
-- Archives a video on the Wayback Machine
+- Archives videos on the Wayback Machine
 
-cache uri...
-- Caches a video title
+cache video...
+- Caches video titles
 
-clone uri file
+clone uri [playlist]
 - Clones a YouTube playlist to a file
 
-music uri...
-- Downloads a video as audio, splitting it by chapter
+list
+- lists local playlists
 
-pick file...
+localsearch
+- uses $YTPICK to search for videos from the local cache
+
+new playlist...
+- creates new playlists
+
+pick playlist...
 - Opens $PICKER to a list of videos in a file
 
 play uri...
-- Plays a video, caching its title first
+- Plays videos, caching their titles first
 
-queue file...
-- Queues a playlist
+queue playlist...
+- Queues playlists
 
-verify file...
+search term [count]
+- Searches YouTube for term and returns count results
+
+sync [playlist]
+- If a playlist is specified, sync that playlist with its remote YouTube
+counterpart; otherwise, sync all playlists with remotes
+
+verify playlist...
 - Verifies that all the videos in a playlist are existent on YouTube, and if
 they aren’t, attempts to replace the URI with one from the Wayback Machine. If
 the video isn’t available on the Wayback Machine, it comments the video link. It