Several docstring fixes
Several docstring fixes

stargaser/astropy,tbabej/astropy,tbabej/astropy,funbaker/astropy,mhvk/astropy,joergdietrich/astropy,stargaser/astropy,saimn/astropy,DougBurke/astropy,pllim/astropy,aleksandr-bakanov/astropy,DougBurke/astropy,larrybradley/astropy,kelle/astropy,funbaker/astropy,aleksandr-bakanov/astropy,funbaker/astropy,DougBurke/astropy,dhomeier/astropy,aleksandr-bakanov/astropy,pllim/astropy,mhvk/astropy,StuartLittlefair/astropy,AustereCuriosity/astropy,lpsinger/astropy,joergdietrich/astropy,kelle/astropy,funbaker/astropy,MSeifert04/astropy,MSeifert04/astropy,lpsinger/astropy,larrybradley/astropy,astropy/astropy,stargaser/astropy,tbabej/astropy,dhomeier/astropy,bsipocz/astropy,mhvk/astropy,MSeifert04/astropy,saimn/astropy,StuartLittlefair/astropy,lpsinger/astropy,joergdietrich/astropy,MSeifert04/astropy,lpsinger/astropy,AustereCuriosity/astropy,larrybradley/astropy,bsipocz/astropy,DougBurke/astropy,mhvk/astropy,bsipocz/astropy,astropy/astropy,astropy/astropy,dhomeier/astropy,pllim/astropy,mhvk/astropy,tbabej/astropy,saimn/astropy,tbabej/astropy,AustereCuriosity/astropy,kelle/astropy,StuartLittlefair/astropy,saimn/astropy,aleksandr-bakanov/astropy,AustereCuriosity/astropy,dhomeier/astropy,astropy/astropy,pllim/astropy,kelle/astropy,joergdietrich/astropy,saimn/astropy,larrybradley/astropy,StuartLittlefair/astropy,kelle/astropy,astropy/astropy,dhomeier/astropy,lpsinger/astropy,bsipocz/astropy,joergdietrich/astropy,AustereCuriosity/astropy,stargaser/astropy,larrybradley/astropy,StuartLittlefair/astropy,pllim/astropy