chore(tmuxp ls): Fix doc string

Author: tony

tmuxp/cli/ls.py

@@ -6,7 +6,10 @@
 from .utils import get_config_dir
 
 
-@click.command(name="ls", short_help=f"List configured sessions in {get_config_dir()}.")
+@click.command(
+    name="ls",
+    short_help="List configured sessions in :meth:`tmuxp.cli.utils.get_config_dir`.",
+)
 def command_ls():
     tmuxp_dir = get_config_dir()
     if os.path.exists(tmuxp_dir) and os.path.isdir(tmuxp_dir):