lua docs - type checking

docs/lua/type_checking.md

@@ -0,0 +1,28 @@
+# Type checking 
+
+
+1. Download and install [Luau language server](https://marketplace.visualstudio.com/items?itemName=JohnnyMorganz.luau-lsp) for VS Code.
+2. Open `data` folder in VS Code.
+3. Create VS Code workspace settings (`data/.vscode/settings.json`).
+4. Put following json there:
+```js
+{
+	"luau-lsp.types.definitionFiles": ["scripts/lumix.d.lua"],
+}
+```
+5. Create `.luaurc` in `data\scripts\` and put following json there:
+```js
+{
+	"languageMode": "nonstrict",
+	"lint": { "*": true, "FunctionUnused": false },
+	"lintErrors": true,
+	"globals": ["expect"]
+}
+```
+6. Typechecking should now work, you can test with following script:
+```lua
+function onInputEvent(event : InputEvent)
+	return event.some_prop
+end
+```
+

docs/readme.md

@@ -6,6 +6,9 @@
 * [Job System](job_system.md)
 * [Profiler](profiler.md)
 
+# Lua
+* [Type checking](lua/type_checking.md)
+
 # Renderer
 
 * [Shaders](shaders.md)