Reworded parts of the README.md

Author: rxi

README.md

@@ -1,6 +1,6 @@
 # LoveDOS
-A framework for making 2D DOS games in Lua. LoveDOS provides a subset of the
-[LÖVE](https://love2d.org/) API.
+A framework for making 2D DOS games in Lua. LoveDOS provides an API based on a
+subset of the [LÖVE](https://love2d.org/) API.
 
 ![screenshot](https://cloud.githubusercontent.com/assets/3920290/3274842/db280102-f334-11e3-9967-f27f01d34d52.gif)
 
@@ -30,12 +30,11 @@ the built-in LoveDOS modules, functions and callbacks.
 
 
 ## Using images
-LoveDOS provides support for a single image format: 8bit .pcx; the palette
-stored in the image is ignored. LoveDOS uses the default VGA palette by
-default, but this can be changed by using the `love.graphics.setPalette()`
-function. [ASEprite](http://www.aseprite.org/) is a good choice of image
-editing software for use with LoveDOS as it uses the default VGA palette by
-default and can save to the 8bit .pcx format.
+LoveDOS provides support for a single image format: 8bit .pcx. By default the
+standard VGA palette is used, although this can be changed by using the
+`love.graphics.setPalette()` function. [ASEprite](http://www.aseprite.org/) is
+a good choice of image editing software for use with LoveDOS as it uses the
+standard VGA palette by default and can save to the 8bit .pcx format.
 
 
 ## Building