complete the category bar in catering.html

Additional, add a monitor.sh script auto reflushing page for develop.

	modified:   assert/css/order.css
	modified:   assert/css/order.less
	modified:   catering.html
	modified:   index.html
	new file:   monitor.sh
	modified:   assert/css/order.css
	modified:   assert/css/order.less
	new file:   assert/img/chaixin.jpg
	new file:   assert/img/kuguachaodang.jpg
	new file:   assert/img/mifan.jpg
	new file:   assert/img/paigu.jpg
	new file:   assert/img/plus.png
	modified:   catering.html
Complete the catering.html
Complete package.html

	modified:   assert/css/order.css
	modified:   assert/css/order.less
	new file:   assert/img/taochan1.jpg
	new file:   assert/img/taochan2.jpg
	new file:   assert/img/taochan3.jpg
	modified:   catering.html
	modified:   index.html
	new file:   package.html