release.rst in embulk-0.6.0

- old
+ new

@@ -2,9 +2,10 @@
 ==================================
 
 .. toctree::
     :maxdepth: 1
 
+    release/release-0.6.0
     release/release-0.5.5
     release/release-0.5.4
     release/release-0.5.3
     release/release-0.5.2
     release/release-0.5.1