add lua to readme and app usage

MESYETI · MESYETI · commit e405ae83d0a8 · 2024-08-11T19:30:36.000+01:00
diff --git a/README.md b/README.md
@@ -2,10 +2,14 @@
 Callisto is a reverse polish notation programming
 language inspired by YSL-C3 and Forth
 
+It also has a subset called CallistoScript made for scripting languages like Lua, and
+it's still sort of low level
+
 ## Supported targets
 - x86 real mode (complete)
 - x86_64 Linux (complete)
 - Uxn (complete, `implement` broken, see #6)
+- Lua (complete, subset CallistoScript)
 
 ## Build
 You need a [D compiler](https://dlang.org/download.html) to build the Callisto compiler
diff --git a/source/app.d b/source/app.d
@@ -45,6 +45,7 @@ Backends and their operating systems:
 	rm86   - Real mode x86, for bare-metal, dos
 	x86_64 - 64-bit x86, for bare-metal, linux
 	uxn    - Varvara/Uxn
+	lua    - Lua, uses subset CallistoScript
 
 Backend options:
 	rm86:
