fix react-sdk link

supporting-docs/projects/2014-06-09-riot.md

@@ -11,7 +11,7 @@ maturity: Released
 ![screenshot](/docs/projects/images/riot-web-large.png "{{ page.title }}")
 
 # {{ page.title }}
-[Riot](https://riot.im) is a glossy Matrix client built on top of [matrix-react-sdk](http://matrix.org/blog/project/matrix-react-sdk/) with an emphasis on performance and usability.
+[Riot](https://riot.im) is a glossy Matrix client built on top of [matrix-react-sdk](http://matrix.org/docs/projects/sdk/matrix.org-react-sdk.html) with an emphasis on performance and usability.
 
 You can use it at [https://riot.im/app](https://riot.im/app), read more at [https://riot.im](https://riot.im) and get the source from [github](https://github.com/vector-im/vector-web)!