show a random car in index page
minor layout chagnes
minor css changes
ignore sublime text related files
remove sublime-workspace from version control
show car's information
Code refine
Use annotate to list schema in model
rename function
Add new table :models
Add model :model
brand donesn't has_many :cars now
Use rails_admin
remove :brand_name from :model
Modify :cars table due to :car belongs to :model now
Modify :car model for belonging to :model