Added Oleg Engine readme

From Foohy/Oscillofun

libs/readme.txt

@@ -0,0 +1,32 @@
+=========== OLEG ENGINE ============
+FOOHY MADE THIS
+https://github.com/Foohy/gravity_car
+http://foohy.net
+====================================
+
+1) The settings file
+	The file is stored in a simple human readable-editable JSON format. If it doesn't exist, the engine will recreate it with default settings. Else, it'll load it up and use the settings described
+
+	WHAT EACH SETTING DOES (THERE ISN'T A LOT):
+	VSync: Sets the vsync mode.
+		0 - off
+		1 - on
+		2 - adaptive
+
+	WindowMode: How the window will appear
+		0 - Normal (windowed)
+		1 - Minimized
+		2 - Maximized
+		3 - Fullscreen
+
+	NoBorder: Remove the border of the window (Useful for appearing like fullscreen but acting like a window)
+	Width/Height: The resolution of the screen. This is rather self explanatory
+	ShadowMapSize: The size (width and height) of the shadowmap. Higher values will result in a better looking map but is more perfomance intensive.
+	Samples: MSAA samples for antialiasing
+	AnisotropicFiltering: How much anisotropic filtering should be applied to textures. This makes textures that aren't perpendicular to the camera look better.
+	GlobalVolume: Global volume override for all audio.
+	ShowFPS: Draw an FPS indicator ingame
+	ShowConsole: Show the debug console. Do this if bad things are happening.
+
+2) I'm not responsible if it breaks your everything
+	I was nowhere near isle 7