Update translation-------.md

Author: sheepzh

.github/ISSUE_TEMPLATE/translation-------.md

@@ -1,7 +1,7 @@
 ---
 name: Translation Issue / 翻译改善建议
 about: Improve the translation of this extension
-title: 'A translation issue'
+title: 'Report translation mistakes'
 labels: 'locale'
 assignees: ''
 ---