website: update website style.

Author: jaywcjlove

template/styl/index.styl

@@ -303,7 +303,6 @@ a {
 .contributors {
   padding 79px 27px
   max-width: 960px;
-  margin: 28px auto 60px auto;
   color: #24292f;
   background-color: #ffffff;
   font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";