DOC: Fix typo in docstring of DataFrame.memory_usage  (#25770)
DOC: Fix typo in docstring of DataFrame.memory_usage  (#25770)

Co-authored-by: Peter Leimbigler <b6eb349bd8b1f76553627c702e77b2805d242304@gmail.com>
toobaz/pandas,jreback/pandas,jreback/pandas,pandas-dev/pandas,rs2/pandas,toobaz/pandas,jreback/pandas,gfyoung/pandas,cbertinato/pandas,pandas-dev/pandas,gfyoung/pandas,toobaz/pandas,dsm054/pandas,gfyoung/pandas,gfyoung/pandas,rs2/pandas,TomAugspurger/pandas,cbertinato/pandas,jreback/pandas,jorisvandenbossche/pandas,jorisvandenbossche/pandas,TomAugspurger/pandas,jorisvandenbossche/pandas,dsm054/pandas,cbertinato/pandas,dsm054/pandas,toobaz/pandas,cbertinato/pandas,dsm054/pandas,TomAugspurger/pandas,rs2/pandas,datapythonista/pandas,toobaz/pandas,datapythonista/pandas,jorisvandenbossche/pandas,TomAugspurger/pandas,cbertinato/pandas,datapythonista/pandas,jreback/pandas,datapythonista/pandas,pandas-dev/pandas,dsm054/pandas,pandas-dev/pandas,rs2/pandas,gfyoung/pandas