Table class docstring improvement
Table class docstring improvement

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