Added Planning Poker app
Merge branch 'release/0.0.1-first-release'
display estimation number, instead of bar icons, if estimation is over 5
made numerical display of estimation bold.
Merge pull request #1 from mrhazel/hotfix/estimation-display

display estimation number, instead of bar icons, if estimation is over 5
Added screenshot and rule of the game
Merge branch 'hotfix/readme-add-screenshot' into develop