fix typo
Merge pull request #4 from tanabe/fix-typo

fix typo
add images for 5.2
Merge branch 'master' of https://github.com/mixi-inc/iOSTraining
add sample project and images for 5.2
fixed sample project and add image for 5.2
6.1のサンプルプロジェクト追加
Merge remote-tracking branch 'iOSSample/master'