zh-translation:content/zh/events/* (#6024)

* zh-translation: /events/index.md

* zh-translation: /events/stickers/1.5.md

* zh-translation: /events/banners/latest-release.md

* zh-translation: events/banners/kubecon

* zh-translation: /events/index.md

* Fix:  lint errors.

content/zh/events/banners/kubecon-america-2019.md

@@ -1,9 +1,9 @@
 ---
-title: KubeCon North America 2019
+title: KubeCon 2019 北美会议
 period_start: 2019-11-04
 period_end: 2019-11-21
 max_impressions: 20
 timeout: 20
 ---
 
-Join us at KubeCon North America 2019, November 18 - 21, San Diego
+KubeCon 2019 北美会议， 11 月 18 日至 11月 21 日，在圣地亚哥举办。

content/zh/events/banners/kubecon-europe-2020.md

@@ -1,9 +1,9 @@
 ---
-title: KubeCon Europe 2020
+title: KubeCon 2020 欧洲会议
 period_start: 2020-03-16
 period_end: 2020-04-02
 max_impressions: 20
 timeout: 20
 ---
 
-Join us at KubeCon Europe 2020, March 30 - April 2, Amsterdam
+KubeCon 2020 欧洲会议， 3 月 30 日至 4 月 2 日，在阿姆斯特丹举办。

content/zh/events/banners/latest-release.md

@@ -1,9 +1,9 @@
 ---
-title: Latest Release
+title: 最新版本
 period_start: latest_release
 period_duration: 7
 max_impressions: 3
 link: /docs/setup/getting-started/#download
 ---
 
-Istio {{< istio_version >}} is now available! Click here to download it.
+Istio {{< istio_version >}} 现在可用！点击这里下载。

content/zh/events/index.md

@@ -2,4 +2,4 @@
 headless: true
 ---
 
-This file tells Hugo that the files in this directory tree shouldn't be rendered as normal pages on the site.
+这个文件告诉 Hugo 引擎，在生成页面时，所有放置在当前目录树下的文件都不需要生成独立的页面在站点中显示。

content/zh/events/stickers/1.5.md

@@ -6,4 +6,4 @@ max_impressions: 0
 timeout: 0
 ---
 
-{{< countdown_days >}}&nbsp;days to Istio 1.5
+距离 Istio 1.5 版本发布还有 {{< countdown_days >}} 天。