Adding link to CyclicReplace and refine example

Author: irvanalhaq9

manim/animation/transform.py

@@ -745,7 +745,7 @@ def create_target(self) -> Group:
 
 
 class Swap(CyclicReplace):
-    """Another name for CyclicReplace, which is more understandable for two entries.
+    """Another name for :class:`~.CyclicReplace`, which is more understandable for two entries.
 
     Examples
     --------
@@ -759,7 +759,6 @@ def construct(self):
                 self.play(FadeIn(text_group))
                 self.play(Swap(text_group))
                 self.wait()
-                self.remove(text_group)
     """