make factory girl file clean

spec/requests/desktop/co_authors_pages.spec.rb

@@ -4,8 +4,8 @@ describe "Co-Author pages" do
   subject {co-author}
 
   describe "Co-Author list" do
-    before { visit desktop_co_authors }
-    it { should have_selector('a',    text: 'New Co-Author') }
+    before { visit desktop_co_authors_path }
+    it { should have_selector('a', text: "New Co-Author") }
   end
 
 end