docs(README): add Text-Adventure TUI game/engine (#8)

README.md

@@ -106,6 +106,7 @@ To contribute, see [CONTRIBUTING.md](./CONTRIBUTING.md)
 - [superfile](https://github.com/MHNightCat/superfile) - A fancy, modern terminal-based file manager.
 - [tasktimer](https://github.com/caarlos0/tasktimer) - A dead-simple task timer.
 - [termdbms](https://github.com/mathaou/termdbms) - A keyboard and mouse driven database browser.
+- [text-adventure](https://gitlab.com/thustle/text-adventure) - A text adventure game/engine with a TUI interface.
 - [tgpt](https://github.com/aandrew-me/tgpt) - Conversational AI for the CLI; no API keys necessary.
 - [ticker](https://github.com/achannarasappa/ticker) - A terminal stock viewer and stock position tracker.
 - [trainer](https://github.com/rusinikita/trainer) - A Go concurrency coding interview simulator with learning materials.