Fixed card RC link

Pointing to wrong URL. Fixed to go to RC main site.

content/page/index.mdx

@@ -45,7 +45,7 @@ Use this web site learn to learn about the standards and documentation technique
         title="Riverscapes Consortium"
         image={CardImage}
         description="The Riverscapes Consortium main site."
-        to="/download/install" />
+        to="https://riverscapes.net" />
       <StoryCard 
         title="Our Tools"
         image={CardImage}