first translate wav (#781)

* first translate wav

* Update library/wave.po

Co-authored-by: Wei-Hsiang (Matt) Wang <mattwang44@gmail.com>

---------

Co-authored-by: Wei-Hsiang (Matt) Wang <mattwang44@gmail.com>

Author: Mayavi345

library/wave.po

@@ -20,7 +20,7 @@ msgstr ""
 
 #: ../../library/wave.rst:2
 msgid ":mod:`wave` --- Read and write WAV files"
-msgstr ""
+msgstr ":mod:`wave` --- 讀寫 WAV 檔案"
 
 #: ../../library/wave.rst:10
 msgid "**Source code:** :source:`Lib/wave.py`"