fix typo in the template

app/views/layouts/project.html.haml

@@ -31,7 +31,7 @@
                     %span{ :class => "number" }= @project.issues.opened.count
                 = link_to wall_project_path(@project), :class => current_page?(:controller => "projects", :action => "wall", :id => @project) ? "current" : nil do
                   Wall
-                  - if @project.common_nsotes.count > 0
+                  - if @project.common_notes.count > 0
                     %span{ :class => "number" }= @project.common_notes.count
                 = link_to project_snippets_path(@project), :class => (controller.controller_name == "snippets") ? "current" : nil do
                   Snippets