How to add a new language?

Go into the folder:

advanced-spawnmenu/lua/advanced-spawnmenu/languages

Copy an existing file in, and rename it to the language you want (fr.lua for french, en.lua for english, etc.)

Open the file and do the translation on the right part. Do not touch the words in the brackets.

You can use the language by changing the language in the sh_config.lua file (use the name of the file, like "fr" for fr.lua)