Update pandas-series.md

contrib/pandas/pandas-series.md

@@ -282,6 +282,7 @@ dtype: int64
 If you dont provide any value to n the by default it give results for `n=5`.
 
 ### Few extra functions
+
 | **Function**                           | **Description**                                                        |
 |----------------------------------------|------------------------------------------------------------------------|
 | `<series_object>.sort_values()`        | Return the Series object in ascending order based on its values.       |