Merge pull request rms-support-letter#3045 from shenlebantongying/master

Fix additional line.

_translations/index_zh_cn.md

@@ -1,7 +1,6 @@
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 layout: signed
 title: 一封支持理查德·斯托满(Richard Stallman)的公开信
-An open letter in support of Richard M. Stallman
 description: An open letter in support of Richard Matthew Stallman being reinstated by the Free Software Foundation
 image: /assets/social-media-preview.png
 locale: zh_CN