For the language section it may be better to user the URL list
https://forum.arduino.cc/index.php?topic=705698.0
It is complete but maybe seperate with line breaks for easier reading ?
[list]
[li][url=https://forum.arduino.cc/index.php?board=99.0]中文 (Chinese)[/url][/li]
[li][url=https://forum.arduino.cc/index.php?board=31.0]Deutsch - German[/url][/li]
[li][url=https://forum.arduino.cc/index.php?board=32.0]Español - Spanish[/url][/li]
[li][url=https://forum.arduino.cc/index.php?board=33.0]Français - French[/url][/li]
[li][url=https://forum.arduino.cc/index.php?board=82.0]অসমীয়া, বাংলা, बड़ो - India[/url][/li]
[li][url=https://forum.arduino.cc/index.php?board=34.0]Italiano - Italian[/url][/li]
[li][url=https://forum.arduino.cc/index.php?board=77.0]Nederlands - Dutch[/url][/li]
[li][url=https://forum.arduino.cc/index.php?board=35.0]Portugues - Portuguese[/url][/li]
[li][url=https://forum.arduino.cc/index.php?board=120.0]Россия - Russia[/url][/li]
[li][url=https://forum.arduino.cc/index.php?board=36.0]Scandinavia Swedish, Suomi - Finnish, Norsk - Norwegian[/url][/li]
[/list]