DOC: move enhancements in 1.5 release notes (#47375)
DOC: move enhancements in 1.5 release notes (#47375)

* DOC: move enhancements in 1.5 release notes

* remove rogue hash
datapythonista/pandas,datapythonista/pandas,datapythonista/pandas,pandas-dev/pandas,datapythonista/pandas,pandas-dev/pandas,pandas-dev/pandas,pandas-dev/pandas