Add Flix to SUPPORTED_LANGUAGES.md (#3637)

Author: jaschdoc

CHANGES.md

@@ -4,6 +4,7 @@ New Grammars:
 
 - added 3rd party LookML grammar to SUPPORTED_LANGUAGES [Josh Temple][]
 - added 3rd party FunC grammar to SUPPORTED_LANGUAGES [Nikita Sobolev][]
+- Added 3rd party Flix grammar to SUPPORTED_LANGUAGES [The Flix Organisation][]
 
 Grammars:
 
@@ -23,9 +24,9 @@ Grammars:
 [Nick Chambers]: https://github.com/uplime
 [h7x4]: https://github.com/h7x4
 [Hirse]: https://github.com/Hirse
+[The Flix Organisation]: https://github.com/flix
 [MBoegers]: https://github.com/MBoegers
 
-
 ## Version 11.6.0
 
 Supported Node.js versions:

SUPPORTED_LANGUAGES.md

@@ -77,6 +77,7 @@ The table below shows the full list of languages (and corresponding classes/alia
 | Extempore               | extempore, xtlang, xtm | [highlightjs-xtlang](https://github.com/highlightjs/highlightjs-xtlang) |
 | F#                      | fsharp, fs             |         |
 | FIX                     | fix                    |         |
+| Flix                    | flix                   | [highlightjs-flix](https://github.com/flix/highlightjs-flix) |
 | Fortran                 | fortran, f90, f95      |         |
 | FunC                    | func                   | [highlightjs-func](https://github.com/highlightjs/highlightjs-func) |
 | G-Code                  | gcode, nc              |         |