README.md in ckeditor_rails-3.6.3.1 vs README.md in ckeditor_rails-3.6.4

@@ -47,16 +47,16 @@
     ol,ul,dl {
       *margin-right:0px;
       padding:4 20px;
     }
 
-## Gem maintainance
+## Gem maintenance
 
 Maintain `ckeditor_rails` gem with `Rake` commands.
 
 Update origin CKEditor source files.
 
-    rake update-ckeditor VERSION=3.6.3
+    rake update-ckeditor VERSION=3.6.4
 
 Publish gem.
 
     rake release