update format for i18n

Signed-off-by: WaitSpring <me@waitspring.com>

i18n/zh-hant.json

@@ -1,6 +1,8 @@
 {
     "@metadata": {
-		"authors": ["Kly"]
+        "authors": [
+            "Kly"
+        ]
     },
     "newsignuppage-desc": "添加新功能到[[Special:CreateAccount|註冊表格]]",
     "newsignuppage-recruited": "招募[$1 $2]",