Correct errors in documentation strings (delete excess spaces)

Author: kmatch98

adafruit_display_shapes/sparkline.py

@@ -42,14 +42,14 @@ class Sparkline(displayio.Group):
     # pylint: disable=too-many-arguments
     """ A sparkline graph.
 
-    : param width: Width of the sparkline graph in pixels
-    : param height: Height of the sparkline graph in pixels
-    : param max_items: Maximum number of values housed in the sparkline
-    : param y_min: Lower range for the y-axis.  Set to None for autorange.
-    : param y_max: Upper range for the y-axis.  Set to None for autorange.
-    : param x: X-position on the screen, in pixels
-    : param y: Y-position on the screen, in pixels
-    : param color: Line color, the default value is 0xFFFFFF (WHITE)
+    :param width: Width of the sparkline graph in pixels
+    :param height: Height of the sparkline graph in pixels
+    :param max_items: Maximum number of values housed in the sparkline
+    :param y_min: Lower range for the y-axis.  Set to None for autorange.
+    :param y_max: Upper range for the y-axis.  Set to None for autorange.
+    :param x: X-position on the screen, in pixels
+    :param y: Y-position on the screen, in pixels
+    :param color: Line color, the default value is 0xFFFFFF (WHITE)
     """
 
     def __init__(
@@ -87,7 +87,7 @@ def __init__(
 
     def add_value(self, value):
         """ Add a value to the sparkline.
-        : param value: The value to be added to the sparkline
+        :param value: The value to be added to the sparkline
         """
 
         if value is not None:
@@ -212,7 +212,6 @@ def update(self):
                 last_value = value  # store value for the next iteration
 
     def values(self):
-        """Returns the values displayed on the sparkline
-        """
+        """Returns the values displayed on the sparkline"""
 
         return self._spark_list