fixed url for index

site.hs

@@ -80,7 +80,7 @@ main = hakyll $ do
       post <- fmap head . recentFirst =<< loadAllSnapshots "posts/*.md" "post_content"
       loadAndApplyTemplate "templates/default.html" (postCtxWithTags tags) post
       >>= relativizeUrls
-      >>= changeIdentifier "new_index.html"
+      >>= changeIdentifier "index.html"
 
   match "templates/*" $ compile templateBodyCompiler