Translate library/i18n.po (#965)

* Translate library/i18n.po

* polish translation for library/i18n.po

Author: HsuehYi

library/i18n.po

@@ -30,6 +30,8 @@ msgid ""
 "language to be used in  program messages or by tailoring output to match "
 "local conventions."
 msgstr ""
+"本章所描述的模組透過提供用於程式訊息中語言的選擇機制或是調整輸出以符合當地慣"
+"例，來幫助你編寫不依賴語言和地區設定的軟體"
 
 #: ../../library/i18n.rst:12
 msgid "The list of modules described in this chapter is:"