DOC: Add deprecated to path and versionadded to kwargs

Author: dahlbaek

pandas/core/series.py

@@ -2888,6 +2888,11 @@ def to_csv(self, path_or_buf=None, index=True, sep=",", na_rep='',
 
         Parameters
         ----------
+        path : string or file handle, default None
+
+            .. deprecated:: 0.23.0
+               Pass in `path_or_buf` instead.
+
         path_or_buf : string or file handle, default None
             File path or object, if None is provided the result is returned as
             a string.
@@ -2922,6 +2927,9 @@ def to_csv(self, path_or_buf=None, index=True, sep=",", na_rep='',
             Additional keyword arguments are passed to
             :func:`pandas.DataFrame.to_csv`
 
+            .. versionadded:: 0.23.0
+
+
         Returns
         -------
         None or string