explain the new wider pages for `todos`

README.md

@@ -105,8 +105,8 @@ If you don't define something different, the classes set your project up to use
 - `sans` This option sets the font family to Sans Serif.
 - `roman` The opposite of `sans`, sets a roman/serif font.
 - `todos` This enables the [`todonotes`](http://tug.ctan.org/macros/latex/contrib/todonotes/todonotes.pdf) package and allows you to use the `\todo{}`
-  command. It is set up in a way that removing this option allows you to still leave `\todos`'s in your code without breaking. DO NOT combine this
-  with the `twoside` option!
+  command. It is set up in a way that removing this option allows you to still leave `\todos`'s in your code without breaking. NOTE: using this
+  options will create pages that are wider than A4-format, making them non-printable!
 
 All remaining options are passed along to the respective subclasses and processed there. This means, that you can use all the options described in
 their respec­tive documentations.