docs: fix broken link to deploy with ZEIT Now (#2185)

Author: talkor

packages/docs/docs/guide/deploy.md

@@ -213,6 +213,6 @@ git push heroku master
 heroku open
 ```
 
-## Now
+## ZEIT Now
 
-Please check out [Deploy an example VuePress site with Now](https://zeit.co/examples/vuepress/).
+Please check out [Deploy an example VuePress site with ZEIT Now](https://github.com/zeit/now/tree/master/examples/vuepress).

packages/docs/docs/zh/guide/deploy.md

@@ -210,6 +210,6 @@ git push heroku master
 heroku open
 ```
 
-## Now
+## ZEIT Now
 
-请查看 [用 Now 部署一个 VuePress 的示例站点](https://zeit.co/examples/vuepress/).
+请查看 [用 ZEIT Now 部署一个 VuePress 的示例站点](https://github.com/zeit/now/tree/master/examples/vuepress).