updated README for transforms folder
updated README for transforms folder

tjd08a/open-catalog-generator,snordt/open-catalog-generator,snordt/open-catalog-generator,ericwhyne/open-catalog-generator,snordt/open-catalog-generator,ericwhyne/open-catalog-generator,tjd08a/open-catalog-generator,snordt/open-catalog-generator,ericwhyne/open-catalog-generator,tjd08a/open-catalog-generator,ericwhyne/open-catalog-generator,tjd08a/open-catalog-generator