fixed invalid issues link on dashboard

app/views/dashboard/index.html.haml

@@ -51,7 +51,7 @@
       = link_to "Issues" , "#issues", :id => "issues"
       %small ( assigned to you )
     %strong.right
-      = link_to dashboard_merge_requests_path do 
+      = link_to dashboard_issues_path do 
         Vist issues page → 
     %hr
     .row