update feedback links for items that closed 5/29 and fix a few capitalization inconsistencies
update feedback links for items that closed 5/29 and fix a few capitalization inconsistencies

fedspendingtransparency/fedspendingtransparency.github.io,fedspendingtransparency/fedspendingtransparency.github.io,fedspendingtransparency/fedspendingtransparency.github.io,fedspendingtransparency/fedspendingtransparency.github.io