Why

The README files of the showcase apps are not update to date. Some of the apps have out-dated info, some of them doesn't even have anything in the README file.

Developers who are new to the AeroGear platform should be able to follow the instructions in the README files to build and run the showcase apps.

What

Update the README file of all the showcase apps. They should:

• match the format we have in the SDK repos
• have clear instructions on how to setup the environment to run the apps
• how to build/run the apps
• possible troubleshooting guide