Add an option to prepend lyrics source header

lyrics_dl/__init__.py

@@ -51,6 +51,10 @@ class LyricsDl:
 
             if lyrics:
                 self.logger.info(f"[{provider.name}] Found lyrics!")
+
+                if self.config.prepend_header:
+                    lyrics = f"[re:lyrics-dl:{provider.name}]\n\n{lyrics}"
+
                 return lyrics
 
             self.logger.info(f"[{provider.name}] No lyrics was found!")

lyrics_dl/config.py

@@ -23,6 +23,7 @@ CONFIG_PATH = _get_config_file()
 class LyricsDlConfig:
     order: list[str] = field(default_factory=lambda: ["kugou", "youtube"])
     delay: float | None = 10
+    prepend_header: bool = True
     providers_configs: dict[str, dict] = field(default_factory=lambda: {})
 
     @classmethod