updated documentation to use lower case categories and names
updated documentation to use lower case categories and names

bretthandrews/marvin,albireox/marvin,sdss/marvin,albireox/marvin,sdss/marvin,albireox/marvin,bretthandrews/marvin,bretthandrews/marvin,sdss/marvin,albireox/marvin,bretthandrews/marvin,sdss/marvin