Documenation of Sprint2

[fabianhalbig]

Create new Page for Protoype 2 with following content:

• new features
• explanation on each tab and especially the difference of boosts and coins
• App logo/name
• Screenshots to document the look and "feel" of the prototype.

[fabianhalbig]

Add weekly challenges as a new key feature as well as the progress bar.

Additional explanation on how to use the prototype (only one can use it and profile have to be created).

[fabianhalbig]

As discussed in today's meeting closing this issue, as above-mentioned topics are added to this page.