[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

manim/mobject/mobject.py

@@ -1767,7 +1767,7 @@ def set_color_by_gradient(self, *colors: Iterable[ParsableManimColor]):
         Parameters
         ----------
         colors
-            The colors to use for the gradient. Use like 
+            The colors to use for the gradient. Use like
             ``set_color_by_gradient(RED, BLUE, GREEN)``.
 
         """