add image folder.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
add package.json for node express server.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
add favicon.ico and update html content.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
add coffeescript js file.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>