translate upgrade guide for zh-tw (#47)

* translate upgrade guide for zh-tw

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

* translate features.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

Author: appleboy

content/doc/features.zh-tw.md

@@ -0,0 +1,13 @@
+---
+date: "2016-12-01T16:00:00+02:00"
+title: "功能"
+slug: "features"
+weight: 20
+toc: false
+draft: false
+menu:
+  sidebar:
+    name: "功能"
+    weight: 30
+    identifier: "features"
+---

content/doc/features/authentication.zh-tw.md

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+---
+date: "2016-12-01T16:00:00+02:00"
+title: "認證"
+slug: "authentication"
+weight: 10
+toc: true
+draft: false
+menu:
+  sidebar:
+    parent: "features"
+    name: "認證"
+    weight: 10
+    identifier: "authentication"
+---
+
+# 認證
+
+## TBD

content/doc/features/localization.zh-tw.md

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+---
+date: "2016-12-01T16:00:00+02:00"
+title: "在地化"
+slug: "localization"
+weight: 10
+toc: true
+draft: false
+menu:
+  sidebar:
+    parent: "features"
+    name: "在地化"
+    weight: 20
+    identifier: "localization"
+---
+
+# Localization
+
+## TBD

content/doc/features/webhooks.zh-tw.md

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+---
+date: "2016-12-01T16:00:00+02:00"
+title: "Webhooks"
+slug: "webhooks"
+weight: 10
+toc: true
+draft: false
+menu:
+  sidebar:
+    parent: "features"
+    name: "Webhooks"
+    weight: 30
+    identifier: "webhooks"
+---
+
+# Webhooks
+
+## TBD

content/doc/upgrade.zh-tw.md

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+---
+date: "2016-12-01T16:00:00+02:00"
+title: "升級"
+slug: "upgrade"
+weight: 10
+toc: false
+draft: false
+menu:
+  sidebar:
+    name: "升級"
+    weight: 20
+    identifier: "upgrade"
+---

content/doc/upgrade/from-gogs.zh-tw.md

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+---
+date: "2016-12-01T16:00:00+02:00"
+title: "從 Gogs 升級"
+slug: "upgrade-from-gogs"
+weight: 10
+toc: true
+draft: false
+menu:
+  sidebar:
+    parent: "upgrade"
+    name: "從 Gogs 升級"
+    weight: 10
+    identifier: "upgrade-from-gogs"
+---
+
+# 從 Gogs 升級
+
+假如您正在運行 Gogs 0.9.99 以下版本，你可以很平順的升級到 Gitea，請參考底下升級步驟：
+
+* 停止 Gogs 服務。
+* 複製 Gogs 設定檔 `custom/conf/app.ini` 到 Gitea 相對應位置。
+* 複製 Gogs `conf/` 目錄到 Gitea `options/` 目錄。
+* 假如您還有更多自訂的檔案在 `custom/` 目錄，像是多國語系檔案或模板，你應該手動將設定轉移到 Gitea 上，因為這些檔案在 Gitea 上有些不同。
+* 複製 `data/` 目錄到 Gitea 相對應目錄，此目錄包含 issue 附件檔及頭像。
+* 啟動 Gitea 服務
+* 進入 Gitea 管理介面，執行 `重新產生 '.ssh/authorized_keys' 檔案` (警告: 非 Gitea 金鑰將被刪除) 和 `重新產生全部倉庫 update hook` (當自訂設定檔已經被修改，則需要此步驟)。