docs: update docs for website

docs/source/_data/news.yml

@@ -1,9 +1,3 @@
--
-  url: https://github.com/harttle/liquidjs/pull/5
-  date: '2016-09-12'
-  title:
-    zh-cn: '异步化：重写了解析器和渲染器，使 LiquidJS 可以提供 Promise API 并支持异步的自定义 Tag 实现。'
-    en: 'Async spike: rewrite the parser and render to support Promise, which enables async tags.'
 -
   url: https://opencollective.com/liquidjs/#section-contribute
   date: '2020-02-26'
@@ -22,3 +16,9 @@
   title:
     zh-cn: '性能提升：引入 AST 并重新设计 Token 类型系统，使渲染性能平均提升 100.3%。'
     en: 'Performance Boost: a simple AST to improve render performance by 100.3%.'
+-
+  url: https://github.com/harttle/liquidjs/milestone/3?closed=1
+  date: '2021-09-30'
+  title:
+    zh-cn: '流式渲染：4 倍渲染速度，并增加了对流式渲染的支持。'
+    en: 'Streamed Rendering: now render is 4x faster and support streamed rendering.'