Add parameters description in class documentation.

Verified pylint and black

Author: jposada202020

adafruit_display_text/label.py

@@ -83,7 +83,7 @@ def __init__(
         anchor_point=None,
         anchored_position=None,
         scale=1,
-        **kwargs,
+        **kwargs
     ):
         if not max_glyphs and not text:
             raise RuntimeError("Please provide a max size, or initial text")