feat: added build instructions

premake5.lua

@@ -0,0 +1,25 @@
+workspace "roguelike"
+    configurations { "debug", "release" }
+    location "."
+
+project "roguelike"
+    kind "WindowedApp"
+    language "C++"
+    cppdialect "C++20"
+    location "build/"
+    buildinputs "../resources/**.*"
+    buildoutputs "%{cfg.targetdir}/resources/**.*"
+    postbuildcommands "{COPYDIR} ../resources %{cfg.targetdir}"
+    files { "src/**.cpp", "vendor/**.cpp" }
+    includedirs { "src/", "vendor/" }
+    links { "SDL2", "SDL2_image", "m", "SDL2_ttf" }
+    targetdir "bin/"
+    exceptionhandling "Off"
+    filter "configurations:debug"
+        defines { "DEBUG" }
+        optimize "Off"
+        symbols "On"
+    filter "configurations:release"
+        defines { "NDEBUG" }
+        optimize "On"
+        symbols "Off"