docs: Add translation note

Author: Paillat-dev

CONTRIBUTING.md

@@ -90,6 +90,11 @@ contribution (including but not limited to the following: writing code/documenta
 discussing with maintainers) must be disclosed at all times. The disclosure must include
 what tools what used and to what scopes they were used.
 
+Using LLMs or other AI tools for translation, for example, if you are not a native
+English speaker, is discouraged. It can distort your intended meaning and make a
+human-written contribution look AI-generated. Please use a non-LLM-based translation
+tool instead.
+
 The use of fully autonomous LLMs or other AI tools to perform the action of opening
 issues or pull requests is forbidden.