Added tagging in README. Artist not added to filename when is release artist

README

@@ -2,3 +2,39 @@
 https://github.com/nlohmann/json
 Release - 3.10.5
 Commit - 4f8fba14066156b73f1189a2b8bd568bde5284c5
+
+--- id3edit ---
+https://github.com/rstemmer/id3edit
+For MP3 tagging
+id3edit
+	--set-name "Title"
+	--set-album "Album"
+	--set-artist "Artist"
+	--set-track "Track Number"
+	--set-artwork "/path/to/cover"
+	file.mp3
+
+--- metaflac ---
+https://xiph.org/flac/download.html
+For FLAC tagging
+metaflac
+	// Common
+	--preserve-modtime
+	--no-utf8-convert
+
+	// First Step - Remove
+	--remove --block-type=PICTURE
+	--remove-tag=TITLE
+	--remove-tag=ARTIST
+	--remove-tag=ALBUM
+	--remove-tag=TRACKNUMBER
+
+	// Second Step - Add
+	--import-picture-from=3|image/jpeg|||"/path/to/cover"
+	"--set-tag=TITLE=..."
+	"--set-tag=ARTIST=..."
+	"--set-tag=ALBUM=..."
+	"--set-tag=TRACKNUMBER=..."
+	--dont-use-padding
+
+	file.flac