Using-CommLCD-NEWGAL-Engine-and-Comm-IAL-Engine.md

 _How to define external stubs to implement your CommLCD engine and
 Comm IAL engine outside MiniGUI Core._
 
+Table of Contents
+
+- [Introduction](#introduction)
+- [Key Points](#key-points)
+- [Functions to be Implemented](#functions-to-be-implemented)
+  * [CommLCD NEWGAL engine](#commlcd-newgal-engine)
+    + [Initializing the engine](#initializing-the-engine)
+    + [Setting video mode](#setting-video-mode)
+    + [Setting palette](#setting-palette)
+    + [Update method](#update-method)
+    + [Releasing the engine](#releasing-the-engine)
+  * [Comm IAL engine](#comm-ial-engine)
+- [Summary](#summary)
+- [References](#references)
+
 ## Introduction
 
 Since MiniGUI 3.2.2, you can use MiniGUI's built-in CommLCD NEWGAL engine
@@ -69,7 +84,7 @@ Note that, all external methods for CommLCD engine should return zero for succes
 
 #### Setting video mode
 
-`__commlcd_drv_getinfo` will be called when MiniGUI trying to set the video
+`__commlcd_drv_getinfo` will be called when MiniGUI tries to set the video
 mode according to your settings in the MiniGUI runtime configuration, e.g.,
 `defaultmode=240x320-32bpp`.
 
@@ -94,7 +109,7 @@ call and returns the video information via `struct commlcd_info* li`:
         return 0;
     }
 
-You need fill the all fields of `struct commlcd_info* li` by the correct
+You need fill the all fields of `struct commlcd_info* li` with the correct
 values:
 
 * `type`: The video mode type. Currently, CommLCD supports the following modes:
@@ -168,7 +183,7 @@ If you specify the `update_method` to be `COMMLCD_UPDATE_SYNC` or
 `COMMLCD_UPDATE_ASYNC`, the update method `__commlcd_drv_update` will
 be called frequently or periodically.
 
-In our sample, this method save the whole frame buffer content to Windows
+In our sample, this method saves the whole frame buffer content to Windows
 bitmap files by calling MiniGUI function:
 
     int __commlcd_drv_update (const RECT* rc_dirty)