Minor fixes to what's new entry
Minor fixes to what's new entry

[ci skip]
mhvk/astropy,mhvk/astropy,pllim/astropy,dhomeier/astropy,StuartLittlefair/astropy,pllim/astropy,saimn/astropy,aleksandr-bakanov/astropy,lpsinger/astropy,larrybradley/astropy,pllim/astropy,pllim/astropy,saimn/astropy,dhomeier/astropy,mhvk/astropy,StuartLittlefair/astropy,larrybradley/astropy,saimn/astropy,dhomeier/astropy,pllim/astropy,mhvk/astropy,astropy/astropy,StuartLittlefair/astropy,saimn/astropy,aleksandr-bakanov/astropy,larrybradley/astropy,aleksandr-bakanov/astropy,saimn/astropy,lpsinger/astropy,astropy/astropy,lpsinger/astropy,dhomeier/astropy,larrybradley/astropy,lpsinger/astropy,astropy/astropy,StuartLittlefair/astropy,aleksandr-bakanov/astropy,larrybradley/astropy,dhomeier/astropy,StuartLittlefair/astropy,astropy/astropy,astropy/astropy,lpsinger/astropy,mhvk/astropy