readme changes

@@ -4,7 +4,17 @@
 sdk with optek link,Initial versions include GAME, Wireless Subwoofer, and Classic Bluetooth.
 
 #### Software Architecture
-Software architecture description
+1. OS:freertos
+2. tasks:
+    taskStream_Rcv:recieve stream processing for spdif source
+    taskDec:deocde and dsp processing
+    task_bt_controller:controller stack of bt processing
+    taskBtHCI:host stack of bt processing
+    task_usbotg:usb stack processing
+    taskUi:key detection and Special event processing
+    taskKeyFunc:Application layer processing
+    taskHdd:file system processing
+    taskIdle:reset watchdog processing
 
 #### Installation
 
@@ -24,13 +34,3 @@ Software architecture description
 2.  Create Feat_xxx branch
 3.  Commit your code
 4.  Create Pull Request
-
-
-#### Gitee Feature
-
-1.  You can use Readme\_XXX.md to support different languages, such as Readme\_en.md, Readme\_zh.md
-2.  Gitee blog [blog.gitee.com](https://blog.gitee.com)
-3.  Explore open source project [https://gitee.com/explore](https://gitee.com/explore)
-4.  The most valuable open source project [GVP](https://gitee.com/gvp)
-5.  The manual of Gitee [https://gitee.com/help](https://gitee.com/help)
-6.  The most popular members  [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/)