Update _core.py to show valid plot types in the Error Message for Inv…

…alid Plots

If an invalid plot type is passed, the error message raised is

```
raise ValueError(f"{kind} is not a valid plot kind")
```
To give more context to user, it should also show the valid plot kinds.

pandas/plotting/_core.py

@@ -961,7 +961,7 @@ def __call__(self, *args, **kwargs):
             return plot_backend.plot(self._parent, x=x, y=y, kind=kind, **kwargs)
 
         if kind not in self._all_kinds:
-            raise ValueError(f"{kind} is not a valid plot kind")
+            raise ValueError(f"{kind} is not a valid plot kind\nValid plot kinds {self._all_kinds}")
 
         # The original data structured can be transformed before passed to the
         # backend. For example, for DataFrame is common to set the index as the