added public/uploads folder to .git
add gem simple-navigation
add navigator and change view
modify routes
modify show
added new image for sportCenter
modify navigation
delete routes unnecessary
modify header layouts
change name class and file, added S to all sportcenter
added edit sport center
modify atribute into method update
Fixing code styles
Merge pull request #23 from fbrusatti/ra/sport-center-dashboard

Ra/sport center dashboard