Merge pull request #1943 from rust-lang-cn/zh

Update Chinese translations

Author: marioidival

README.md

@@ -61,10 +61,13 @@ Please see the [TRANSLATING.md] file for more details.
 
 [TRANSLATING_JA.md]: https://github.com/rust-lang/rust-by-example/blob/master/TRANSLATING_JA.md
 
+* Chinese/中文: [TRANSLATING_ZH.md]
+
+[TRANSLATING_ZH.md]: https://github.com/rust-lang/rust-by-example/blob/master/TRANSLATING_ZH.md
+
 ## Translations to other languages
 
 * [Bulgarian](https://github.com/kberov/rust-by-example-bg)
-* [Chinese](https://github.com/rust-lang-cn/rust-by-example-cn)
 * [French](https://github.com/Songbird0/FR_RBE)
 * [Russian](https://github.com/ruRust/rust-by-example)
 * [Vietnamese](https://github.com/EyesCrypto-Insights/rust-by-example-vn)

TRANSLATING.md

@@ -43,6 +43,12 @@ msginit -i po/messages.pot -l xx -o po/xx.po
 msgmerge --update po/xx.po po/messages.pot
 ```
 
+#### Tracking translation progress
+
+```bash
+msgfmt --statistics po/xx.po
+```
+
 ### Editing translation resources
 
 After generating a translation resource `po/xx.po`, you can write translation messages in `msgstr` entry of `po/xx.po`.