README: fix URL to IP-stack uIP 0.9

The old link does not work anymore, so use the official source.

diff --git a/README.md b/README.md
index b5def0ba7f849b087e4c8f8c9c03d422815a95ac..6e627eaadaa4a0c742f9544f00dcf2543f492d6d 100644 (file)
--- a/README.md
+++ b/README.md
@@ -124,7 +124,7 @@ Modifications, changes
 
 ### Web server
 
-The most important change is an inclusion of a web server, based on **[uIP 0.9 TCP/IP stack](http://www.gaisler.com/doc/net/uip-0.9/doc/html/main.html)**. It allows to upgrade **firmware**, **U-Boot** and **ART** (Atheros Radio Test) images, directly from your web browser, without need to access serial console and running a TFTP server. You can find similar firmware recovery mode, also based on uIP 0.9 TCP/IP stack, in **D-Link** routers.
+The most important change is an inclusion of a web server, based on **[uIP 0.9 TCP/IP stack](https://github.com/adamdunkels/uip/tags)**. It allows to upgrade **firmware**, **U-Boot** and **ART** (Atheros Radio Test) images, directly from your web browser, without need to access serial console and running a TFTP server. You can find similar firmware recovery mode, also based on uIP 0.9 TCP/IP stack, in **D-Link** routers.
 
 Web server contains 7 pages: