[docs] Add zh-tw Translations (#14507)

docs/config.yaml

@@ -147,15 +147,15 @@ languages:
           url: https://blog.gitea.io/
           weight: 30
           pre: rss
-        - name: 程式碼
-          url: https://code.gitea.io/
+        - name: 商店
+          url: https://shop.gitea.io/
           weight: 40
-          pre: code
-        - name: 翻译
+          pre: shopping-cart
+        - name: 翻譯
           url: https://crowdin.com/project/gitea
           weight: 41
           pre: language
-        - name: 下载
+        - name: 下載
           url: https://dl.gitea.io/
           weight: 50
           pre: download
@@ -163,11 +163,11 @@ languages:
           url: https://github.com/go-gitea/
           weight: 60
           pre: github
-        - name: Discord Chat
+        - name: Discord 聊天室
           url: https://discord.gg/Gitea
           weight: 70
           pre: comment
-        - name: Forum
+        - name: 討論區
           url: https://discourse.gitea.io/
           weight: 80
           pre: group