Document Bug? It seems opposite description.

I feel that it seems opposite description in your document.

http://ift.tt/1va3pwR

In "Introduction",

"These files will be replaced by sencha app upgrade and so should be edited unless absolutely necessary "

Is it correct that "should *NOT* be edited unless absolutely necessary " ?

Plus,

"These files are, however, an excellent reference but should be modified unless necessary. "

Also is it correct that "should *NOT* be modified unless necessary. " ?

Regards.

Document Bug? It seems opposite description.