doc: Fix URL of libextra docs

brson · brson · commit b65b4d63841d · 2014-01-07T17:29:57.000-08:00
diff --git a/doc/index.md b/doc/index.md
@@ -24,7 +24,7 @@
 # Libraries
 
 [std](std/index.html)  
-[extra](index.html)  
+[extra](extra/index.html)  
 
 # Tooling
 
