DOC: typo in sanitize_dataframe docstring
DOC: typo in sanitize_dataframe docstring

vega/ipyvega,uwdata/ipython-vega-lite,uwdata/ipython-vega,uwdata/ipython-vega-lite,uwdata/ipython-vega,vega/ipyvega,vega/ipython-vega,vega/ipyvega,vega/ipython-vega,vega/ipyvega,uwdata/ipython-vega,uwdata/ipython-vega-lite,vega/ipython-vega