fix link (#39974)

Author: rohitgr7

pandas/io/clipboard/__init__.py

@@ -66,7 +66,7 @@
 EXCEPT_MSG = """
     Pyperclip could not find a copy/paste mechanism for your system.
     For more information, please visit
-    https://pyperclip.readthedocs.io/en/latest/introduction.html#not-implemented-error
+    https://pyperclip.readthedocs.io/en/latest/#not-implemented-error
     """
 
 ENCODING = "utf-8"