Add missing languages in Proofreaders page

Signed-off-by: Rémy Coutable <remy@rymai.me>

doc/development/i18n/proofreader.md

@@ -5,7 +5,14 @@ are very appreciative of the work done by translators and proofreaders!
 
 ## Proofreaders
 
+- Albanian
+  - Proofreaders needed.
+- Arabic
+  - Proofreaders needed.
 - Bulgarian
+  - Lyubomir Vasilev - [Crowdin](https://crowdin.com/profile/lyubomirv)
+- Catalan
+  - Proofreaders needed.
 - Chinese Simplified
   - Huang Tao - [GitLab](https://gitlab.com/htve), [Crowdin](https://crowdin.com/profile/htve)
 - Chinese Traditional
@@ -14,13 +21,31 @@ are very appreciative of the work done by translators and proofreaders!
   - Yi-Jyun Pan - [GitLab](https://gitlab.com/pan93412), [Crowdin](https://crowdin.com/profile/pan93412)
 - Chinese Traditional, Hong Kong
   - Huang Tao - [GitLab](https://gitlab.com/htve), [Crowdin](https://crowdin.com/profile/htve)
+- Czech
+  - Proofreaders needed.
+- Danish
+  - Proofreaders needed.
 - Dutch
-  -  Emily Hendle - [GitLab](https://gitlab.com/pundachan), [Crowdin](https://crowdin.com/profile/pandachan)
+  - Emily Hendle - [GitLab](https://gitlab.com/pundachan), [Crowdin](https://crowdin.com/profile/pandachan)
 - Esperanto
+- Lyubomir Vasilev - [Crowdin](https://crowdin.com/profile/lyubomirv)
+- Estonian
+  - Proofreaders needed.
+- Filipino
+  - Proofreaders needed.
 - French
   - Davy Defaud - [GitLab](https://gitlab.com/DevDef), [Crowdin](https://crowdin.com/profile/DevDef)
+- Galician
+  - Antón Méixome - [Crowdin](https://crowdin.com/profile/meixome)
+  - Pedro Garcia - [GitLab](https://gitlab.com/pedgarrod), [Crowdin](https://crowdin.com/profile/breaking_pitt)
 - German
   - Michael Hahnle - [GitLab](https://gitlab.com/mhah), [Crowdin](https://crowdin.com/profile/mhah)
+- Greek
+  - Proofreaders needed.
+- Hebrew
+  - Proofreaders needed.
+- Hungarian
+  - Proofreaders needed.
 - Indonesian
   - Ahmad Naufal Mukhtar - [GitLab](https://gitlab.com/anaufalm), [Crowdin](https://crowdin.com/profile/anaufalm)
 - Italian
@@ -32,19 +57,38 @@ are very appreciative of the work done by translators and proofreaders!
   - Chang-Ho Cha - [GitLab](https://gitlab.com/changho-cha), [Crowdin](https://crowdin.com/profile/zzazang)
   - Huang Tao - [GitLab](https://gitlab.com/htve), [Crowdin](https://crowdin.com/profile/htve)
   - Ji Hun Oh - [GitLab](https://gitlab.com/Baw-Appie), [Crowdin](https://crowdin.com/profile/BawAppie)
+- Mongolian
+  - Proofreaders needed.
+- Norwegian Bokmal
+  - Proofreaders needed.
 - Polish
   - Filip Mech - [GitLab](https://gitlab.com/mehenz), [Crowdin](https://crowdin.com/profile/mehenz)
+- Portuguese
+  - Proofreaders needed.
 - Portuguese, Brazilian
   - Paulo George Gomes Bezerra - [GitLab](https://gitlab.com/paulobezerra), [Crowdin](https://crowdin.com/profile/paulogomes.rep)
   - André Gama - [GitLab](https://gitlab.com/andregamma), [Crowdin](https://crowdin.com/profile/ToeOficial)
+- Romanian
+  - Proofreaders needed.
 - 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)
+  - NickVolynkin - [Crowdin](https://crowdin.com/profile/NickVolynkin)
+- Serbian (Cyrillic)
+  - Proofreaders needed.
+- Serbian (Latin)
+  - Proofreaders needed.
+- Slovak
+  - Proofreaders needed.
 - Spanish
   - Pedro Garcia - [GitLab](https://gitlab.com/pedgarrod), [Crowdin](https://crowdin.com/profile/breaking_pitt)
+- Turkish
+  - Proofreaders needed.
 - Ukrainian
   - Volodymyr Sobotovych - [GitLab](https://gitlab.com/wheleph), [Crowdin](https://crowdin.com/profile/wheleph)
   - Andrew Vityuk - [GitLab](https://gitlab.com/3_1_3_u), [Crowdin](https://crowdin.com/profile/andruwa13)
+- Welsh
+  - Proofreaders needed.
 
 ## Become a proofreader