DOC: add plt.show so that the plot will show, along with note about p… (#43544)
DOC: add plt.show so that the plot will show, along with note about p… (#43544)

* DOC: add plt.show so that the plot will show, along with note about plt.show, plt.savefig and Jupyter Notebook.

* DOC: add plt.show so that the plot will show, along with note about plt.show, plt.savefig and Jupyter Notebook.
pandas-dev/pandas,rs2/pandas,rs2/pandas,pandas-dev/pandas,jorisvandenbossche/pandas,datapythonista/pandas,datapythonista/pandas,pandas-dev/pandas,rs2/pandas,jorisvandenbossche/pandas,pandas-dev/pandas,jorisvandenbossche/pandas,jorisvandenbossche/pandas,datapythonista/pandas,datapythonista/pandas,rs2/pandas