website: update website style.

Author: jaywcjlove

template/styl/index.styl

@@ -302,7 +302,14 @@ a {
 
 .contributors {
   padding 79px 27px
-  font-size: 16px
+  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";
+  font-size: 16px;
+  line-height: 1.5;
+  word-wrap: break-word;
   a {
     font-weight: bold;
   }