add:增加http server输入ssid 密码

TC1/http_server/readme.txt

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+/**
+  @page " http_sever "  demo
+  
+  @verbatim
+  ******************** (C) COPYRIGHT 2016 MXCHIP MiCO SDK*******************
+  * @file    http_sever/readme.txt 
+  * @author  MDWG (MiCO Documentation Working Group)
+  * @version v2.4.x
+  * @date    11-April-2016
+  * @brief   Description of the  "http_sever"  demo.
+  ******************************************************************************
+
+  @par Demo Description 
+  This demo shows:  how to start http sever to realize  network configuration through webpage on PC or Mobile Phone.
+
+
+@par Directory contents 
+    - Demos/http/http_sever/http_sever.c      HTTP server demo entrance
+    - Demos/http/http_sever/app_httpd.c       HTTP server demo
+    - Demos/http/http_sever/web_data.c        Webpage applicaiton program
+    - Demos/http/http_sever/mico_config.h     MiCO function header file
+    - Demos/http/http_sever/app_httpd.h       app_httpd.c header file
+
+
+@par Hardware and Software environment         
+    - This demo has been tested on MiCOKit-3165 board.
+    - This demo can be easily tailored to any other supported device and development board.
+
+
+@par How to use it ? 
+In order to make the program work, you must do the following :
+ - Open your preferred toolchain, 
+    - IDE:  IAR 7.30.4 or Keil MDK 5.13.       
+    - Debugging Tools: JLINK or STLINK
+ - Modify header file path of  "mico_config.h".   Please referring to "http://mico.io/wiki/doku.php?id=confighchange"
+ - Rebuild all files and load your image into target memory.   Please referring to "http://mico.io/wiki/doku.php?id=debug"
+ - Run the demo.
+ - View operating results and system serial log (Serial port: Baud rate: 115200, data bits: 8bit, parity: No, stop bits: 1).   Please referring to http://mico.io/wiki/doku.php?id=com.mxchip.basic
+
+**/
+