fix: fix link in the introduction page (#467)

Signed-off-by: Ryohsuke Mitsudome <[email protected]>

Author: mitsudome-r

docs/index.md

@@ -4,7 +4,7 @@
 
 Autoware is the world’s leading open-source software project for autonomous driving. Autoware is built on Robot Operating System (ROS) and enables commercial deployment of autonomous driving in a broad range of vehicles and applications.
 
-Please see [here](https://www.autoware.org/autoware) for more details.
+Please see [here](https://autoware.org/autoware-overview) for more details.
 
 ## Related Documentations