update old namespace link and incorrect UI link
update old namespace link and incorrect UI link

I noticed the npm link command is out of date in the contribution guide and updated it to what I believe it should be, as well as a link to the Storybook UI page.
storybooks/react-storybook,storybooks/storybook,storybooks/storybook,rhalff/storybook,storybooks/storybook,jribeiro/storybook,jribeiro/storybook,rhalff/storybook,kadirahq/react-storybook,jribeiro/storybook,jribeiro/storybook,storybooks/storybook,rhalff/storybook,storybooks/storybook,storybooks/react-storybook,storybooks/storybook,rhalff/storybook,storybooks/react-storybook,rhalff/storybook,storybooks/storybook,storybooks/react-storybook,rhalff/storybook,kadirahq/react-storybook