updated the description of 'website_sale'

addons/website_sale/static/description/analytics.png

addons/website_sale/static/description/blog.png

addons/website_sale/static/description/checkout.png

addons/website_sale/static/description/event_top.png

addons/website_sale/static/description/index.html

...site_sale/static/description/openerp_translation_tool.png

addons/website_sale/static/description/reseller.png

addons/website_sale/static/description/ribbon.png

addons/website_sale/static/description/suggested.png

addons/website_sale/static/description/warehouse_illu_01.png

addons/website_sale/static/description/website_edit.png

addons/website_sale/static/description/website_home.png

addons/website_sale/static/description/website_sale_SO.png

addons/website_sale/static/description/website_sale_home.png

.../website_sale/static/description/website_sale_product.png

...ns/website_sale/static/description/website_sale_sc_00.png

addons/website_sale/static/description/website_seo.png