history.erb in erbook-6.0.1

- old
+ new
@@ -1,6 +1,10 @@
 <% chapter "Project history", "history" do %>
   <% project_history do %>
+    <% section "Version 6.0.1 (2009-01-19)" do %>
+      This release reattempts to fix the [circular dependency problem](http://www.ruby-forum.com/topic/176173#771281) that occurred when installing either **<%= Inochi::PROJECT %>** or **<%= $project %>**.
+    <% end %>
+
     <% section "Version 6.0.0 (2009-01-19)" do %>
       This release improves the appearance & usability of the XHTML format, refactors the core logic into reusable libraries, fixes some bugs and improves variable names.
 
       <% paragraph "Incompatible changes" do %>
         * Renamed `@types` to `@nodes_by_type` and `@spec` to `@format` in XHTML format.