Made change to 5B exercises
Merge branch 'master' of https://github.com/iExperience/iExperience.github.io
Merge branch 'master' of https://github.com/iExperience/iExperience.github.io
Merge branch 'master' of https://github.com/iExperience/iExperience.github.io
Merge branch 'master' of https://github.com/iExperience/iExperience.github.io
Merge branch 'master' of https://github.com/iExperience/iExperience.github.io
Fixed 6A permalink