Follow up on comments for showcase_app PR #682

1) Docs - Paul

https://github.com/aerogear/mobile-docs/pull/682#discussion_r291575723

https://github.com/aerogear/mobile-docs/pull/682#discussion_r291576080

https://github.com/aerogear/mobile-docs/pull/682#discussion_r291576574

2) QE - P Struc
I was wondering, do you think it would make sense to tell user on this place (https://github.com/aerogear/mobile-docs/pull/682/files#diff-6548f1cccbdf3e920c68badb77e6ae10R94) to copy the content of the configuration file (to clipboard) and than to just paste it to src/mobile-services.json file here https://github.com/aerogear/mobile-docs/pull/682/files#diff-6548f1cccbdf3e920c68badb77e6ae10R131? So we don't need to repeat the configuration file content here? https://github.com/aerogear/mobile-docs/pull/682/files#diff-6548f1cccbdf3e920c68badb77e6ae10R135

https://github.com/jstaffor/mobile-docs/pull/3#pullrequestreview-247507817