Update README.md

Switch to luau_compile and specify env for luau_load

README.md

@@ -40,8 +40,13 @@ make config=release luau luau-analyze
 To integrate Luau into your CMake application projects, at the minimum you'll need to depend on `Luau.Compiler` and `Luau.VM` projects. From there you need to create a new Luau state (using Lua 5.x API such as `lua_newstate`), compile source to bytecode and load it into the VM like this:
 
 ```cpp
-std::string bytecode = Luau::compile(source); // needs Luau/Compiler.h include
-if (luau_load(L, chunkname, bytecode.data(), bytecode.size()) == 0)
+// needs lua.h and luacode.h
+size_t bytecodeSize = 0;
+char* bytecode = luau_compile(source, strlen(source), NULL, &bytecodeSize);
+int result = luau_load(L, chunkname, bytecode, bytecodeSize, 0);
+free(bytecode);
+
+if (result == 0)
     return 1; /* return chunk main function */
 ```