Fix relative link to RoR site on sample homepage
Fix relative link to RoR site on sample homepage

The link to the RoR homepage was a relative link and was therefore
going to http://localhost:3000/rubyonrails.org.

owen2345/camaleon-cms,durchdiestadt/camaleon-cms,FlowerWrong/camaleon-cms,SecondBureau/camaleon-cms,SecondBureau/camaleon-cms,owen2345/camaleon-cms,FlowerWrong/camaleon-cms,owen2345/camaleon-cms,beansmile/camaleon-cms,brian-kephart/camaleon-cms,pulkit21/camaleon-cms,mazharoddin/camaleon-cms,beansmile/camaleon-cms,mazharoddin/camaleon-cms,durchdiestadt/camaleon-cms,mazharoddin/camaleon-cms,SecondBureau/camaleon-cms,brian-kephart/camaleon-cms,durchdiestadt/camaleon-cms,FlowerWrong/camaleon-cms,brian-kephart/camaleon-cms,beansmile/camaleon-cms,pulkit21/camaleon-cms,pulkit21/camaleon-cms