DOC: timezone conversion example added to pandas.Series.astype doc #33399 (#33470)
DOC: timezone conversion example added to pandas.Series.astype doc #33399 (#33470)

* DOC: timezone conversion example added to pandas.Series.astype doc #33399

* DOC: fixed the whitespace issue flagged in pep8 checks #33399

* DOC: added text in comments to commentary in example #333999

* DOC: added a more generic behavior statement as suggested. #33399

* DOC: removed unwanted commentary statement as per suggestion #33399

Co-authored-by: Venkatesh Datta <f19f737fe09bf743b9776dc64f6d0f915f5bbccb@miqdigital.com>
dsm054/pandas,jorisvandenbossche/pandas,rs2/pandas,datapythonista/pandas,pandas-dev/pandas,gfyoung/pandas,pandas-dev/pandas,jorisvandenbossche/pandas,dsm054/pandas,jreback/pandas,dsm054/pandas,jorisvandenbossche/pandas,dsm054/pandas,pandas-dev/pandas,TomAugspurger/pandas,rs2/pandas,datapythonista/pandas,pandas-dev/pandas,gfyoung/pandas,jorisvandenbossche/pandas,TomAugspurger/pandas,jreback/pandas,gfyoung/pandas,datapythonista/pandas,TomAugspurger/pandas,TomAugspurger/pandas,datapythonista/pandas,jreback/pandas,gfyoung/pandas,rs2/pandas,dsm054/pandas,jreback/pandas,rs2/pandas,gfyoung/pandas,jreback/pandas