Update proofreader.md

doc/development/i18n/proofreader.md

@@ -102,6 +102,7 @@ are very appreciative of the work done by translators and proofreaders!
 - Romanian
   - Mircea Pop - [GitLab](https://gitlab.com/eeex), [Crowdin](https://crowdin.com/profile/eex)
   - Rareș Pița - [GitLab](https://gitlab.com/dlphin), [Crowdin](https://crowdin.com/profile/dlphin)
+  - Nicolae Liviu - [GitLab](https://gitlab.com/nicklcanada), [Crowdin](https://crowdin.com/profile/nicklcanada)
 - Russian
   - Nikita Grylov - [GitLab](https://gitlab.com/nixel2007), [Crowdin](https://crowdin.com/profile/nixel2007)
   - Alexy Lustin - [GitLab](https://gitlab.com/allustin), [Crowdin](https://crowdin.com/profile/lustin)