Treat organizations as singular nouns in chapter 2.
Merge pull request #566 from ichthyos/singular_organizations

Treat organizations as singular nouns in chapter 2.
Update 12-mobile-applications.md

 console.log(page was inserted into the DOM'); >  console.log('page was inserted into the DOM');
Merge pull request #570 from woanversace/patch-1

Update 12-mobile-applications.md